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Finding the Fourth Proportional to 173,873.70, 260,983.35 and 85,227.30

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Solution

The fourth proportional to 173,873.70, 260,983.35 and 85,227.30 is: 127,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,873.70 : 260,983.35 = 85,227.30 : x
  2. Step 2: Convert to fraction form
    173,873.70/260,983.35 = 85,227.30/x
  3. Step 3: Cross multiply
    173,873.70x = 260,983.35 × 85,227.30
  4. Step 4: Simplify right side
    173,873.70x = 22,242,906,265.46
  5. Step 5: Solve for x
    x = 22,242,906,265.46/173,873.70
  6. Step 6: Final answer
    x = 127,925.65

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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.