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Finding the Fourth Proportional to 108,607.28, 149,862.84 and 60,856.88

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Solution

The fourth proportional to 108,607.28, 149,862.84 and 60,856.88 is: 83,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,607.28 : 149,862.84 = 60,856.88 : x
  2. Step 2: Convert to fraction form
    108,607.28/149,862.84 = 60,856.88/x
  3. Step 3: Cross multiply
    108,607.28x = 149,862.84 × 60,856.88
  4. Step 4: Simplify right side
    108,607.28x = 9,120,184,870.34
  5. Step 5: Solve for x
    x = 9,120,184,870.34/108,607.28
  6. Step 6: Final answer
    x = 83,973.97

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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.