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Finding the Fourth Proportional to 108,645.40, 162,968.10 and 95,512.60

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Solution

The fourth proportional to 108,645.40, 162,968.10 and 95,512.60 is: 143,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,645.40 : 162,968.10 = 95,512.60 : x
  2. Step 2: Convert to fraction form
    108,645.40/162,968.10 = 95,512.60/x
  3. Step 3: Cross multiply
    108,645.40x = 162,968.10 × 95,512.60
  4. Step 4: Simplify right side
    108,645.40x = 15,565,506,948.06
  5. Step 5: Solve for x
    x = 15,565,506,948.06/108,645.40
  6. Step 6: Final answer
    x = 143,268.90

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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.