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Finding the Fourth Proportional to 441,752.22, 662,691.66 and 142,133.22

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Solution

The fourth proportional to 441,752.22, 662,691.66 and 142,133.22 is: 213,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,752.22 : 662,691.66 = 142,133.22 : x
  2. Step 2: Convert to fraction form
    441,752.22/662,691.66 = 142,133.22/x
  3. Step 3: Cross multiply
    441,752.22x = 662,691.66 × 142,133.22
  4. Step 4: Simplify right side
    441,752.22x = 94,190,499,502.95
  5. Step 5: Solve for x
    x = 94,190,499,502.95/441,752.22
  6. Step 6: Final answer
    x = 213,220.21

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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.