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Finding the Fourth Proportional to 441,655.13, 662,343.28 and 142,068.94

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Solution

The fourth proportional to 441,655.13, 662,343.28 and 142,068.94 is: 213,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,655.13 : 662,343.28 = 142,068.94 : x
  2. Step 2: Convert to fraction form
    441,655.13/662,343.28 = 142,068.94/x
  3. Step 3: Cross multiply
    441,655.13x = 662,343.28 × 142,068.94
  4. Step 4: Simplify right side
    441,655.13x = 94,098,405,694.69
  5. Step 5: Solve for x
    x = 94,098,405,694.69/441,655.13
  6. Step 6: Final answer
    x = 213,058.56

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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.