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Finding the Fourth Proportional to 498,758.15, 748,242.43 and 161,772.63

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Solution

The fourth proportional to 498,758.15, 748,242.43 and 161,772.63 is: 242,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,758.15 : 748,242.43 = 161,772.63 : x
  2. Step 2: Convert to fraction form
    498,758.15/748,242.43 = 161,772.63/x
  3. Step 3: Cross multiply
    498,758.15x = 748,242.43 × 161,772.63
  4. Step 4: Simplify right side
    498,758.15x = 121,045,145,778.69
  5. Step 5: Solve for x
    x = 121,045,145,778.69/498,758.15
  6. Step 6: Final answer
    x = 242,693.07

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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.