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Finding the Fourth Proportional to 157,151.52, 216,891.96 and 88,248.72

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Solution

The fourth proportional to 157,151.52, 216,891.96 and 88,248.72 is: 121,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,151.52 : 216,891.96 = 88,248.72 : x
  2. Step 2: Convert to fraction form
    157,151.52/216,891.96 = 88,248.72/x
  3. Step 3: Cross multiply
    157,151.52x = 216,891.96 × 88,248.72
  4. Step 4: Simplify right side
    157,151.52x = 19,140,437,848.29
  5. Step 5: Solve for x
    x = 19,140,437,848.29/157,151.52
  6. Step 6: Final answer
    x = 121,796.07

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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.