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Finding the Fourth Proportional to 108,781.88, 163,219.60 and 58,897.63

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Solution

The fourth proportional to 108,781.88, 163,219.60 and 58,897.63 is: 88,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,781.88 : 163,219.60 = 58,897.63 : x
  2. Step 2: Convert to fraction form
    108,781.88/163,219.60 = 58,897.63/x
  3. Step 3: Cross multiply
    108,781.88x = 163,219.60 × 58,897.63
  4. Step 4: Simplify right side
    108,781.88x = 9,613,246,793.45
  5. Step 5: Solve for x
    x = 9,613,246,793.45/108,781.88
  6. Step 6: Final answer
    x = 88,371.77

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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.