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Finding the Fourth Proportional to 335,409.48, 502,958.70 and 124,990.92

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Solution

The fourth proportional to 335,409.48, 502,958.70 and 124,990.92 is: 187,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,409.48 : 502,958.70 = 124,990.92 : x
  2. Step 2: Convert to fraction form
    335,409.48/502,958.70 = 124,990.92/x
  3. Step 3: Cross multiply
    335,409.48x = 502,958.70 × 124,990.92
  4. Step 4: Simplify right side
    335,409.48x = 62,865,270,635.00
  5. Step 5: Solve for x
    x = 62,865,270,635.00/335,409.48
  6. Step 6: Final answer
    x = 187,428.43

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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.