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Finding the Fourth Proportional to 60,321.30, 90,473.58 and 42,254.82

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Solution

The fourth proportional to 60,321.30, 90,473.58 and 42,254.82 is: 63,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,321.30 : 90,473.58 = 42,254.82 : x
  2. Step 2: Convert to fraction form
    60,321.30/90,473.58 = 42,254.82/x
  3. Step 3: Cross multiply
    60,321.30x = 90,473.58 × 42,254.82
  4. Step 4: Simplify right side
    60,321.30x = 3,822,944,837.66
  5. Step 5: Solve for x
    x = 3,822,944,837.66/60,321.30
  6. Step 6: Final answer
    x = 63,376.37

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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.