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Finding the Fourth Proportional to 88,404, 121,999.44 and 48,660

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Solution

The fourth proportional to 88,404, 121,999.44 and 48,660 is: 67,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,404 : 121,999.44 = 48,660 : x
  2. Step 2: Convert to fraction form
    88,404/121,999.44 = 48,660/x
  3. Step 3: Cross multiply
    88,404x = 121,999.44 × 48,660
  4. Step 4: Simplify right side
    88,404x = 5,936,492,750.40
  5. Step 5: Solve for x
    x = 5,936,492,750.40/88,404
  6. Step 6: Final answer
    x = 67,151.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.