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Finding the Fourth Proportional to 365,702.53, 548,356.55 and 165,913.91

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Solution

The fourth proportional to 365,702.53, 548,356.55 and 165,913.91 is: 248,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,702.53 : 548,356.55 = 165,913.91 : x
  2. Step 2: Convert to fraction form
    365,702.53/548,356.55 = 165,913.91/x
  3. Step 3: Cross multiply
    365,702.53x = 548,356.55 × 165,913.91
  4. Step 4: Simplify right side
    365,702.53x = 90,979,976,957.61
  5. Step 5: Solve for x
    x = 90,979,976,957.61/365,702.53
  6. Step 6: Final answer
    x = 248,781.37

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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.