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Finding the Fourth Proportional to 569,164.56, 853,746.72 and 148,439.28

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Solution

The fourth proportional to 569,164.56, 853,746.72 and 148,439.28 is: 222,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,164.56 : 853,746.72 = 148,439.28 : x
  2. Step 2: Convert to fraction form
    569,164.56/853,746.72 = 148,439.28/x
  3. Step 3: Cross multiply
    569,164.56x = 853,746.72 × 148,439.28
  4. Step 4: Simplify right side
    569,164.56x = 126,729,548,419.16
  5. Step 5: Solve for x
    x = 126,729,548,419.16/569,164.56
  6. Step 6: Final answer
    x = 222,658.89

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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.