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Finding the Fourth Proportional to 108,233.86, 149,266 and 67,951.36

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Solution

The fourth proportional to 108,233.86, 149,266 and 67,951.36 is: 93,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,233.86 : 149,266 = 67,951.36 : x
  2. Step 2: Convert to fraction form
    108,233.86/149,266 = 67,951.36/x
  3. Step 3: Cross multiply
    108,233.86x = 149,266 × 67,951.36
  4. Step 4: Simplify right side
    108,233.86x = 10,142,827,701.76
  5. Step 5: Solve for x
    x = 10,142,827,701.76/108,233.86
  6. Step 6: Final answer
    x = 93,712.15

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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.