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Finding the Fourth Proportional to 499,951.11, 749,931.53 and 125,974.11

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Solution

The fourth proportional to 499,951.11, 749,931.53 and 125,974.11 is: 188,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,951.11 : 749,931.53 = 125,974.11 : x
  2. Step 2: Convert to fraction form
    499,951.11/749,931.53 = 125,974.11/x
  3. Step 3: Cross multiply
    499,951.11x = 749,931.53 × 125,974.11
  4. Step 4: Simplify right side
    499,951.11x = 94,471,956,422.82
  5. Step 5: Solve for x
    x = 94,471,956,422.82/499,951.11
  6. Step 6: Final answer
    x = 188,962.39

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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.