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Finding the Fourth Proportional to 60,321.83, 90,368.52 and 40,270.86

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Solution

The fourth proportional to 60,321.83, 90,368.52 and 40,270.86 is: 60,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,321.83 : 90,368.52 = 40,270.86 : x
  2. Step 2: Convert to fraction form
    60,321.83/90,368.52 = 40,270.86/x
  3. Step 3: Cross multiply
    60,321.83x = 90,368.52 × 40,270.86
  4. Step 4: Simplify right side
    60,321.83x = 3,639,218,017.33
  5. Step 5: Solve for x
    x = 3,639,218,017.33/60,321.83
  6. Step 6: Final answer
    x = 60,330.04

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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.