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Finding the Fourth Proportional to 157,592.62, 235,159.78 and 140,608.90

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Solution

The fourth proportional to 157,592.62, 235,159.78 and 140,608.90 is: 209,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,592.62 : 235,159.78 = 140,608.90 : x
  2. Step 2: Convert to fraction form
    157,592.62/235,159.78 = 140,608.90/x
  3. Step 3: Cross multiply
    157,592.62x = 235,159.78 × 140,608.90
  4. Step 4: Simplify right side
    157,592.62x = 33,065,557,753.66
  5. Step 5: Solve for x
    x = 33,065,557,753.66/157,592.62
  6. Step 6: Final answer
    x = 209,816.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.