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Finding the Fourth Proportional to 72,203.40, 108,305.10 and 48,583.80

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Solution

The fourth proportional to 72,203.40, 108,305.10 and 48,583.80 is: 72,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,203.40 : 108,305.10 = 48,583.80 : x
  2. Step 2: Convert to fraction form
    72,203.40/108,305.10 = 48,583.80/x
  3. Step 3: Cross multiply
    72,203.40x = 108,305.10 × 48,583.80
  4. Step 4: Simplify right side
    72,203.40x = 5,261,873,317.38
  5. Step 5: Solve for x
    x = 5,261,873,317.38/72,203.40
  6. Step 6: Final answer
    x = 72,875.70

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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.