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Finding the Fourth Proportional to 102,596.62, 141,471.73 and 66,720.10

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Solution

The fourth proportional to 102,596.62, 141,471.73 and 66,720.10 is: 92,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,596.62 : 141,471.73 = 66,720.10 : x
  2. Step 2: Convert to fraction form
    102,596.62/141,471.73 = 66,720.10/x
  3. Step 3: Cross multiply
    102,596.62x = 141,471.73 × 66,720.10
  4. Step 4: Simplify right side
    102,596.62x = 9,439,007,972.77
  5. Step 5: Solve for x
    x = 9,439,007,972.77/102,596.62
  6. Step 6: Final answer
    x = 92,001.16

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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.