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Finding the Fourth Proportional to 372,176.70, 558,265.05 and 214,712.70

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Solution

The fourth proportional to 372,176.70, 558,265.05 and 214,712.70 is: 322,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,176.70 : 558,265.05 = 214,712.70 : x
  2. Step 2: Convert to fraction form
    372,176.70/558,265.05 = 214,712.70/x
  3. Step 3: Cross multiply
    372,176.70x = 558,265.05 × 214,712.70
  4. Step 4: Simplify right side
    372,176.70x = 119,866,596,201.14
  5. Step 5: Solve for x
    x = 119,866,596,201.14/372,176.70
  6. Step 6: Final answer
    x = 322,069.05

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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.