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Finding the Fourth Proportional to 108,646.85, 149,932.11 and 60,900.20

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Solution

The fourth proportional to 108,646.85, 149,932.11 and 60,900.20 is: 84,041.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,646.85 : 149,932.11 = 60,900.20 : x
  2. Step 2: Convert to fraction form
    108,646.85/149,932.11 = 60,900.20/x
  3. Step 3: Cross multiply
    108,646.85x = 149,932.11 × 60,900.20
  4. Step 4: Simplify right side
    108,646.85x = 9,130,894,735.76
  5. Step 5: Solve for x
    x = 9,130,894,735.76/108,646.85
  6. Step 6: Final answer
    x = 84,041.97

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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.