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Finding the Fourth Proportional to 478,160.88, 717,069.05 and 158,253.72

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Solution

The fourth proportional to 478,160.88, 717,069.05 and 158,253.72 is: 237,323.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,160.88 : 717,069.05 = 158,253.72 : x
  2. Step 2: Convert to fraction form
    478,160.88/717,069.05 = 158,253.72/x
  3. Step 3: Cross multiply
    478,160.88x = 717,069.05 × 158,253.72
  4. Step 4: Simplify right side
    478,160.88x = 113,478,843,868.10
  5. Step 5: Solve for x
    x = 113,478,843,868.10/478,160.88
  6. Step 6: Final answer
    x = 237,323.56

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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.