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Finding the Fourth Proportional to 101,053.13, 151,478.52 and 83,338.43

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Solution

The fourth proportional to 101,053.13, 151,478.52 and 83,338.43 is: 124,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,053.13 : 151,478.52 = 83,338.43 : x
  2. Step 2: Convert to fraction form
    101,053.13/151,478.52 = 83,338.43/x
  3. Step 3: Cross multiply
    101,053.13x = 151,478.52 × 83,338.43
  4. Step 4: Simplify right side
    101,053.13x = 12,623,981,278.13
  5. Step 5: Solve for x
    x = 12,623,981,278.13/101,053.13
  6. Step 6: Final answer
    x = 124,924.20

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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.