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Finding the Fourth Proportional to 492,517.71, 738,776.70 and 118,540.71

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Solution

The fourth proportional to 492,517.71, 738,776.70 and 118,540.71 is: 177,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,517.71 : 738,776.70 = 118,540.71 : x
  2. Step 2: Convert to fraction form
    492,517.71/738,776.70 = 118,540.71/x
  3. Step 3: Cross multiply
    492,517.71x = 738,776.70 × 118,540.71
  4. Step 4: Simplify right side
    492,517.71x = 87,575,114,549.46
  5. Step 5: Solve for x
    x = 87,575,114,549.46/492,517.71
  6. Step 6: Final answer
    x = 177,811.10

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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.