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Finding the Fourth Proportional to 108,230.83, 149,261.87 and 67,948.38

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Solution

The fourth proportional to 108,230.83, 149,261.87 and 67,948.38 is: 93,708.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,230.83 : 149,261.87 = 67,948.38 : x
  2. Step 2: Convert to fraction form
    108,230.83/149,261.87 = 67,948.38/x
  3. Step 3: Cross multiply
    108,230.83x = 149,261.87 × 67,948.38
  4. Step 4: Simplify right side
    108,230.83x = 10,142,102,432.14
  5. Step 5: Solve for x
    x = 10,142,102,432.14/108,230.83
  6. Step 6: Final answer
    x = 93,708.07

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1.5x scale

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.