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Finding the Fourth Proportional to 408,030.58, 612,045.39 and 141,791.12

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Solution

The fourth proportional to 408,030.58, 612,045.39 and 141,791.12 is: 212,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,030.58 : 612,045.39 = 141,791.12 : x
  2. Step 2: Convert to fraction form
    408,030.58/612,045.39 = 141,791.12/x
  3. Step 3: Cross multiply
    408,030.58x = 612,045.39 × 141,791.12
  4. Step 4: Simplify right side
    408,030.58x = 86,782,598,278.71
  5. Step 5: Solve for x
    x = 86,782,598,278.71/408,030.58
  6. Step 6: Final answer
    x = 212,686.51

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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.