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Finding the Fourth Proportional to 474,999.12, 712,500.03 and 115,168.53

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Solution

The fourth proportional to 474,999.12, 712,500.03 and 115,168.53 is: 172,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,999.12 : 712,500.03 = 115,168.53 : x
  2. Step 2: Convert to fraction form
    474,999.12/712,500.03 = 115,168.53/x
  3. Step 3: Cross multiply
    474,999.12x = 712,500.03 × 115,168.53
  4. Step 4: Simplify right side
    474,999.12x = 82,057,581,080.06
  5. Step 5: Solve for x
    x = 82,057,581,080.06/474,999.12
  6. Step 6: Final answer
    x = 172,753.12

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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.