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Finding the Fourth Proportional to 372,341.91, 558,022.06 and 147,579.87

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Solution

The fourth proportional to 372,341.91, 558,022.06 and 147,579.87 is: 221,175.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,341.91 : 558,022.06 = 147,579.87 : x
  2. Step 2: Convert to fraction form
    372,341.91/558,022.06 = 147,579.87/x
  3. Step 3: Cross multiply
    372,341.91x = 558,022.06 × 147,579.87
  4. Step 4: Simplify right side
    372,341.91x = 82,352,825,348.99
  5. Step 5: Solve for x
    x = 82,352,825,348.99/372,341.91
  6. Step 6: Final answer
    x = 221,175.28

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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.