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Finding the Fourth Proportional to 118,560.90, 177,643.89 and 83,426.73

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Solution

The fourth proportional to 118,560.90, 177,643.89 and 83,426.73 is: 125,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,560.90 : 177,643.89 = 83,426.73 : x
  2. Step 2: Convert to fraction form
    118,560.90/177,643.89 = 83,426.73/x
  3. Step 3: Cross multiply
    118,560.90x = 177,643.89 × 83,426.73
  4. Step 4: Simplify right side
    118,560.90x = 14,820,248,847.18
  5. Step 5: Solve for x
    x = 14,820,248,847.18/118,560.90
  6. Step 6: Final answer
    x = 125,001.15

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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.