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Finding the Fourth Proportional to 426,124.92, 639,472.50 and 176,806.92

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Solution

The fourth proportional to 426,124.92, 639,472.50 and 176,806.92 is: 265,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,124.92 : 639,472.50 = 176,806.92 : x
  2. Step 2: Convert to fraction form
    426,124.92/639,472.50 = 176,806.92/x
  3. Step 3: Cross multiply
    426,124.92x = 639,472.50 × 176,806.92
  4. Step 4: Simplify right side
    426,124.92x = 113,063,163,149.70
  5. Step 5: Solve for x
    x = 113,063,163,149.70/426,124.92
  6. Step 6: Final answer
    x = 265,328.68

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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.