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Finding the Fourth Proportional to 370,398.71, 555,585.56 and 157,029.42

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Solution

The fourth proportional to 370,398.71, 555,585.56 and 157,029.42 is: 235,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,398.71 : 555,585.56 = 157,029.42 : x
  2. Step 2: Convert to fraction form
    370,398.71/555,585.56 = 157,029.42/x
  3. Step 3: Cross multiply
    370,398.71x = 555,585.56 × 157,029.42
  4. Step 4: Simplify right side
    370,398.71x = 87,243,278,247.18
  5. Step 5: Solve for x
    x = 87,243,278,247.18/370,398.71
  6. Step 6: Final answer
    x = 235,538.83

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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.