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Finding the Fourth Proportional to 145,807.48, 218,711.22 and 34,999.48

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Solution

The fourth proportional to 145,807.48, 218,711.22 and 34,999.48 is: 52,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,807.48 : 218,711.22 = 34,999.48 : x
  2. Step 2: Convert to fraction form
    145,807.48/218,711.22 = 34,999.48/x
  3. Step 3: Cross multiply
    145,807.48x = 218,711.22 × 34,999.48
  4. Step 4: Simplify right side
    145,807.48x = 7,654,778,970.17
  5. Step 5: Solve for x
    x = 7,654,778,970.17/145,807.48
  6. Step 6: Final answer
    x = 52,499.22

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.