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Finding the Fourth Proportional to 157,700.03, 217,593.56 and 90,619.07

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Solution

The fourth proportional to 157,700.03, 217,593.56 and 90,619.07 is: 125,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,700.03 : 217,593.56 = 90,619.07 : x
  2. Step 2: Convert to fraction form
    157,700.03/217,593.56 = 90,619.07/x
  3. Step 3: Cross multiply
    157,700.03x = 217,593.56 × 90,619.07
  4. Step 4: Simplify right side
    157,700.03x = 19,718,125,592.09
  5. Step 5: Solve for x
    x = 19,718,125,592.09/157,700.03
  6. Step 6: Final answer
    x = 125,035.65

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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.