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Finding the Fourth Proportional to 128,957.67, 193,387.30 and 50,053.41

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Solution

The fourth proportional to 128,957.67, 193,387.30 and 50,053.41 is: 75,061.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,957.67 : 193,387.30 = 50,053.41 : x
  2. Step 2: Convert to fraction form
    128,957.67/193,387.30 = 50,053.41/x
  3. Step 3: Cross multiply
    128,957.67x = 193,387.30 × 50,053.41
  4. Step 4: Simplify right side
    128,957.67x = 9,679,693,690.56
  5. Step 5: Solve for x
    x = 9,679,693,690.56/128,957.67
  6. Step 6: Final answer
    x = 75,061.02

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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.