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Finding the Fourth Proportional to 335,760.70, 503,730.15 and 146,139.70

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Solution

The fourth proportional to 335,760.70, 503,730.15 and 146,139.70 is: 219,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,760.70 : 503,730.15 = 146,139.70 : x
  2. Step 2: Convert to fraction form
    335,760.70/503,730.15 = 146,139.70/x
  3. Step 3: Cross multiply
    335,760.70x = 503,730.15 × 146,139.70
  4. Step 4: Simplify right side
    335,760.70x = 73,614,973,001.96
  5. Step 5: Solve for x
    x = 73,614,973,001.96/335,760.70
  6. Step 6: Final answer
    x = 219,248.33

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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.