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Finding the Fourth Proportional to 45,060.90, 67,482.38 and 43,879.92

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Solution

The fourth proportional to 45,060.90, 67,482.38 and 43,879.92 is: 65,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,060.90 : 67,482.38 = 43,879.92 : x
  2. Step 2: Convert to fraction form
    45,060.90/67,482.38 = 43,879.92/x
  3. Step 3: Cross multiply
    45,060.90x = 67,482.38 × 43,879.92
  4. Step 4: Simplify right side
    45,060.90x = 2,961,121,435.81
  5. Step 5: Solve for x
    x = 2,961,121,435.81/45,060.90
  6. Step 6: Final answer
    x = 65,713.77

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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.