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Finding the Fourth Proportional to 364,031.19, 546,292.78 and 127,375.92

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Solution

The fourth proportional to 364,031.19, 546,292.78 and 127,375.92 is: 191,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,031.19 : 546,292.78 = 127,375.92 : x
  2. Step 2: Convert to fraction form
    364,031.19/546,292.78 = 127,375.92/x
  3. Step 3: Cross multiply
    364,031.19x = 546,292.78 × 127,375.92
  4. Step 4: Simplify right side
    364,031.19x = 69,584,545,123.42
  5. Step 5: Solve for x
    x = 69,584,545,123.42/364,031.19
  6. Step 6: Final answer
    x = 191,149.95

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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.