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Finding the Fourth Proportional to 118,113.76, 162,956.08 and 75,695.68

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Solution

The fourth proportional to 118,113.76, 162,956.08 and 75,695.68 is: 104,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,113.76 : 162,956.08 = 75,695.68 : x
  2. Step 2: Convert to fraction form
    118,113.76/162,956.08 = 75,695.68/x
  3. Step 3: Cross multiply
    118,113.76x = 162,956.08 × 75,695.68
  4. Step 4: Simplify right side
    118,113.76x = 12,335,071,285.73
  5. Step 5: Solve for x
    x = 12,335,071,285.73/118,113.76
  6. Step 6: Final answer
    x = 104,433.82

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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.