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Finding the Fourth Proportional to 108,456.60, 162,587.70 and 96,646.80

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Solution

The fourth proportional to 108,456.60, 162,587.70 and 96,646.80 is: 144,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,456.60 : 162,587.70 = 96,646.80 : x
  2. Step 2: Convert to fraction form
    108,456.60/162,587.70 = 96,646.80/x
  3. Step 3: Cross multiply
    108,456.60x = 162,587.70 × 96,646.80
  4. Step 4: Simplify right side
    108,456.60x = 15,713,580,924.36
  5. Step 5: Solve for x
    x = 15,713,580,924.36/108,456.60
  6. Step 6: Final answer
    x = 144,883.58

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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.