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Finding the Fourth Proportional to 118,080.48, 162,948.96 and 64,365.96

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Solution

The fourth proportional to 118,080.48, 162,948.96 and 64,365.96 is: 88,823.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,080.48 : 162,948.96 = 64,365.96 : x
  2. Step 2: Convert to fraction form
    118,080.48/162,948.96 = 64,365.96/x
  3. Step 3: Cross multiply
    118,080.48x = 162,948.96 × 64,365.96
  4. Step 4: Simplify right side
    118,080.48x = 10,488,366,241.40
  5. Step 5: Solve for x
    x = 10,488,366,241.40/118,080.48
  6. Step 6: Final answer
    x = 88,823.88

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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.