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Finding the Fourth Proportional to 335,081.70, 502,711.65 and 145,460.70

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Solution

The fourth proportional to 335,081.70, 502,711.65 and 145,460.70 is: 218,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,081.70 : 502,711.65 = 145,460.70 : x
  2. Step 2: Convert to fraction form
    335,081.70/502,711.65 = 145,460.70/x
  3. Step 3: Cross multiply
    335,081.70x = 502,711.65 × 145,460.70
  4. Step 4: Simplify right side
    335,081.70x = 73,124,788,507.16
  5. Step 5: Solve for x
    x = 73,124,788,507.16/335,081.70
  6. Step 6: Final answer
    x = 218,229.73

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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.