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Finding the Fourth Proportional to 381,346.98, 572,053.67 and 125,102.69

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Solution

The fourth proportional to 381,346.98, 572,053.67 and 125,102.69 is: 187,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,346.98 : 572,053.67 = 125,102.69 : x
  2. Step 2: Convert to fraction form
    381,346.98/572,053.67 = 125,102.69/x
  3. Step 3: Cross multiply
    381,346.98x = 572,053.67 × 125,102.69
  4. Step 4: Simplify right side
    381,346.98x = 71,565,452,941.37
  5. Step 5: Solve for x
    x = 71,565,452,941.37/381,346.98
  6. Step 6: Final answer
    x = 187,664.93

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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.