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Finding the Fourth Proportional to 118,452.39, 163,464.31 and 64,737.39

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Solution

The fourth proportional to 118,452.39, 163,464.31 and 64,737.39 is: 89,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,452.39 : 163,464.31 = 64,737.39 : x
  2. Step 2: Convert to fraction form
    118,452.39/163,464.31 = 64,737.39/x
  3. Step 3: Cross multiply
    118,452.39x = 163,464.31 × 64,737.39
  4. Step 4: Simplify right side
    118,452.39x = 10,582,252,868.47
  5. Step 5: Solve for x
    x = 10,582,252,868.47/118,452.39
  6. Step 6: Final answer
    x = 89,337.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.