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Finding the Fourth Proportional to 362,078.90, 542,995.33 and 125,366.22

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Solution

The fourth proportional to 362,078.90, 542,995.33 and 125,366.22 is: 188,006.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,078.90 : 542,995.33 = 125,366.22 : x
  2. Step 2: Convert to fraction form
    362,078.90/542,995.33 = 125,366.22/x
  3. Step 3: Cross multiply
    362,078.90x = 542,995.33 × 125,366.22
  4. Step 4: Simplify right side
    362,078.90x = 68,073,271,999.75
  5. Step 5: Solve for x
    x = 68,073,271,999.75/362,078.90
  6. Step 6: Final answer
    x = 188,006.74

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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.