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Finding the Fourth Proportional to 354,986.98, 532,508.15 and 118,329.66

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Solution

The fourth proportional to 354,986.98, 532,508.15 and 118,329.66 is: 177,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,986.98 : 532,508.15 = 118,329.66 : x
  2. Step 2: Convert to fraction form
    354,986.98/532,508.15 = 118,329.66/x
  3. Step 3: Cross multiply
    354,986.98x = 532,508.15 × 118,329.66
  4. Step 4: Simplify right side
    354,986.98x = 63,011,508,336.73
  5. Step 5: Solve for x
    x = 63,011,508,336.73/354,986.98
  6. Step 6: Final answer
    x = 177,503.72

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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.