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Finding the Fourth Proportional to 361,727.84, 542,416.80 and 124,987.52

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Solution

The fourth proportional to 361,727.84, 542,416.80 and 124,987.52 is: 187,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,727.84 : 542,416.80 = 124,987.52 : x
  2. Step 2: Convert to fraction form
    361,727.84/542,416.80 = 124,987.52/x
  3. Step 3: Cross multiply
    361,727.84x = 542,416.80 × 124,987.52
  4. Step 4: Simplify right side
    361,727.84x = 67,795,330,638.34
  5. Step 5: Solve for x
    x = 67,795,330,638.34/361,727.84
  6. Step 6: Final answer
    x = 187,420.83

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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.