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Finding the Fourth Proportional to 370,429.74, 555,631.97 and 157,060.31

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Solution

The fourth proportional to 370,429.74, 555,631.97 and 157,060.31 is: 235,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,429.74 : 555,631.97 = 157,060.31 : x
  2. Step 2: Convert to fraction form
    370,429.74/555,631.97 = 157,060.31/x
  3. Step 3: Cross multiply
    370,429.74x = 555,631.97 × 157,060.31
  4. Step 4: Simplify right side
    370,429.74x = 87,267,725,890.65
  5. Step 5: Solve for x
    x = 87,267,725,890.65/370,429.74
  6. Step 6: Final answer
    x = 235,585.10

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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.