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Finding the Fourth Proportional to 123,842.55, 185,637.73 and 48,859.77

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Solution

The fourth proportional to 123,842.55, 185,637.73 and 48,859.77 is: 73,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,842.55 : 185,637.73 = 48,859.77 : x
  2. Step 2: Convert to fraction form
    123,842.55/185,637.73 = 48,859.77/x
  3. Step 3: Cross multiply
    123,842.55x = 185,637.73 × 48,859.77
  4. Step 4: Simplify right side
    123,842.55x = 9,070,215,972.83
  5. Step 5: Solve for x
    x = 9,070,215,972.83/123,842.55
  6. Step 6: Final answer
    x = 73,239.90

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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.