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Finding the Fourth Proportional to 157,561.84, 217,436.02 and 85,943.40

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Solution

The fourth proportional to 157,561.84, 217,436.02 and 85,943.40 is: 118,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,561.84 : 217,436.02 = 85,943.40 : x
  2. Step 2: Convert to fraction form
    157,561.84/217,436.02 = 85,943.40/x
  3. Step 3: Cross multiply
    157,561.84x = 217,436.02 × 85,943.40
  4. Step 4: Simplify right side
    157,561.84x = 18,687,190,841.27
  5. Step 5: Solve for x
    x = 18,687,190,841.27/157,561.84
  6. Step 6: Final answer
    x = 118,602.26

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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.