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Finding the Fourth Proportional to 170,856.73, 235,764.84 and 99,251.92

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Solution

The fourth proportional to 170,856.73, 235,764.84 and 99,251.92 is: 136,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,856.73 : 235,764.84 = 99,251.92 : x
  2. Step 2: Convert to fraction form
    170,856.73/235,764.84 = 99,251.92/x
  3. Step 3: Cross multiply
    170,856.73x = 235,764.84 × 99,251.92
  4. Step 4: Simplify right side
    170,856.73x = 23,400,113,038.49
  5. Step 5: Solve for x
    x = 23,400,113,038.49/170,856.73
  6. Step 6: Final answer
    x = 136,957.51

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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.