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Finding the Fourth Proportional to 157,218.19, 235,923.90 and 62,431.78

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Solution

The fourth proportional to 157,218.19, 235,923.90 and 62,431.78 is: 93,686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,218.19 : 235,923.90 = 62,431.78 : x
  2. Step 2: Convert to fraction form
    157,218.19/235,923.90 = 62,431.78/x
  3. Step 3: Cross multiply
    157,218.19x = 235,923.90 × 62,431.78
  4. Step 4: Simplify right side
    157,218.19x = 14,729,149,021.54
  5. Step 5: Solve for x
    x = 14,729,149,021.54/157,218.19
  6. Step 6: Final answer
    x = 93,686.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.