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Finding the Fourth Proportional to 492,457.96, 738,686.89 and 118,480.96

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Solution

The fourth proportional to 492,457.96, 738,686.89 and 118,480.96 is: 177,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,457.96 : 738,686.89 = 118,480.96 : x
  2. Step 2: Convert to fraction form
    492,457.96/738,686.89 = 118,480.96/x
  3. Step 3: Cross multiply
    492,457.96x = 738,686.89 × 118,480.96
  4. Step 4: Simplify right side
    492,457.96x = 87,520,331,866.61
  5. Step 5: Solve for x
    x = 87,520,331,866.61/492,457.96
  6. Step 6: Final answer
    x = 177,721.43

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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.