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Finding the Fourth Proportional to 97,841.67, 134,990.91 and 54,815.40

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Solution

The fourth proportional to 97,841.67, 134,990.91 and 54,815.40 is: 75,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,841.67 : 134,990.91 = 54,815.40 : x
  2. Step 2: Convert to fraction form
    97,841.67/134,990.91 = 54,815.40/x
  3. Step 3: Cross multiply
    97,841.67x = 134,990.91 × 54,815.40
  4. Step 4: Simplify right side
    97,841.67x = 7,399,580,728.01
  5. Step 5: Solve for x
    x = 7,399,580,728.01/97,841.67
  6. Step 6: Final answer
    x = 75,628.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.