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Finding the Fourth Proportional to 220,856.76, 304,787.34 and 125,354.52

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Solution

The fourth proportional to 220,856.76, 304,787.34 and 125,354.52 is: 172,992.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,856.76 : 304,787.34 = 125,354.52 : x
  2. Step 2: Convert to fraction form
    220,856.76/304,787.34 = 125,354.52/x
  3. Step 3: Cross multiply
    220,856.76x = 304,787.34 × 125,354.52
  4. Step 4: Simplify right side
    220,856.76x = 38,206,470,707.78
  5. Step 5: Solve for x
    x = 38,206,470,707.78/220,856.76
  6. Step 6: Final answer
    x = 172,992.08

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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.