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Finding the Fourth Proportional to 372,443.05, 558,460.45 and 147,575.71

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Solution

The fourth proportional to 372,443.05, 558,460.45 and 147,575.71 is: 221,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,443.05 : 558,460.45 = 147,575.71 : x
  2. Step 2: Convert to fraction form
    372,443.05/558,460.45 = 147,575.71/x
  3. Step 3: Cross multiply
    372,443.05x = 558,460.45 × 147,575.71
  4. Step 4: Simplify right side
    372,443.05x = 82,415,197,415.67
  5. Step 5: Solve for x
    x = 82,415,197,415.67/372,443.05
  6. Step 6: Final answer
    x = 221,282.68

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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.