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Finding the Fourth Proportional to 335,439.84, 502,926.48 and 125,021.28

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Solution

The fourth proportional to 335,439.84, 502,926.48 and 125,021.28 is: 187,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,439.84 : 502,926.48 = 125,021.28 : x
  2. Step 2: Convert to fraction form
    335,439.84/502,926.48 = 125,021.28/x
  3. Step 3: Cross multiply
    335,439.84x = 502,926.48 × 125,021.28
  4. Step 4: Simplify right side
    335,439.84x = 62,876,512,275.49
  5. Step 5: Solve for x
    x = 62,876,512,275.49/335,439.84
  6. Step 6: Final answer
    x = 187,444.97

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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.