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Finding the Fourth Proportional to 478,773.33, 717,939.27 and 141,693.45

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Solution

The fourth proportional to 478,773.33, 717,939.27 and 141,693.45 is: 212,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,773.33 : 717,939.27 = 141,693.45 : x
  2. Step 2: Convert to fraction form
    478,773.33/717,939.27 = 141,693.45/x
  3. Step 3: Cross multiply
    478,773.33x = 717,939.27 × 141,693.45
  4. Step 4: Simplify right side
    478,773.33x = 101,727,292,056.78
  5. Step 5: Solve for x
    x = 101,727,292,056.78/478,773.33
  6. Step 6: Final answer
    x = 212,474.85

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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.