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Finding the Fourth Proportional to 173,904.60, 260,856.90 and 85,331.10

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Solution

The fourth proportional to 173,904.60, 260,856.90 and 85,331.10 is: 127,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,904.60 : 260,856.90 = 85,331.10 : x
  2. Step 2: Convert to fraction form
    173,904.60/260,856.90 = 85,331.10/x
  3. Step 3: Cross multiply
    173,904.60x = 260,856.90 × 85,331.10
  4. Step 4: Simplify right side
    173,904.60x = 22,259,206,219.59
  5. Step 5: Solve for x
    x = 22,259,206,219.59/173,904.60
  6. Step 6: Final answer
    x = 127,996.65

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1.5x scale

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.