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Finding the Fourth Proportional to 123,842.66, 185,607.66 and 67,565.48

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Solution

The fourth proportional to 123,842.66, 185,607.66 and 67,565.48 is: 101,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,842.66 : 185,607.66 = 67,565.48 : x
  2. Step 2: Convert to fraction form
    123,842.66/185,607.66 = 67,565.48/x
  3. Step 3: Cross multiply
    123,842.66x = 185,607.66 × 67,565.48
  4. Step 4: Simplify right side
    123,842.66x = 12,540,670,639.58
  5. Step 5: Solve for x
    x = 12,540,670,639.58/123,842.66
  6. Step 6: Final answer
    x = 101,262.93

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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.