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Finding the Fourth Proportional to 160,615.74, 240,935.92 and 42,285.38

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Solution

The fourth proportional to 160,615.74, 240,935.92 and 42,285.38 is: 63,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,615.74 : 240,935.92 = 42,285.38 : x
  2. Step 2: Convert to fraction form
    160,615.74/240,935.92 = 42,285.38/x
  3. Step 3: Cross multiply
    160,615.74x = 240,935.92 × 42,285.38
  4. Step 4: Simplify right side
    160,615.74x = 10,188,065,622.46
  5. Step 5: Solve for x
    x = 10,188,065,622.46/160,615.74
  6. Step 6: Final answer
    x = 63,431.30

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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.