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Finding the Fourth Proportional to 83,316.60, 114,978.48 and 45,593.28

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Solution

The fourth proportional to 83,316.60, 114,978.48 and 45,593.28 is: 62,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,316.60 : 114,978.48 = 45,593.28 : x
  2. Step 2: Convert to fraction form
    83,316.60/114,978.48 = 45,593.28/x
  3. Step 3: Cross multiply
    83,316.60x = 114,978.48 × 45,593.28
  4. Step 4: Simplify right side
    83,316.60x = 5,242,246,032.61
  5. Step 5: Solve for x
    x = 5,242,246,032.61/83,316.60
  6. Step 6: Final answer
    x = 62,919.59

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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.