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Finding the Fourth Proportional to 118,876.61, 164,066.54 and 73,569.20

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Solution

The fourth proportional to 118,876.61, 164,066.54 and 73,569.20 is: 101,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.61 : 164,066.54 = 73,569.20 : x
  2. Step 2: Convert to fraction form
    118,876.61/164,066.54 = 73,569.20/x
  3. Step 3: Cross multiply
    118,876.61x = 164,066.54 × 73,569.20
  4. Step 4: Simplify right side
    118,876.61x = 12,070,242,906.39
  5. Step 5: Solve for x
    x = 12,070,242,906.39/118,876.61
  6. Step 6: Final answer
    x = 101,535.90

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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.