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Finding the Fourth Proportional to 88,311, 121,868.70 and 48,024.42

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Solution

The fourth proportional to 88,311, 121,868.70 and 48,024.42 is: 66,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,311 : 121,868.70 = 48,024.42 : x
  2. Step 2: Convert to fraction form
    88,311/121,868.70 = 48,024.42/x
  3. Step 3: Cross multiply
    88,311x = 121,868.70 × 48,024.42
  4. Step 4: Simplify right side
    88,311x = 5,852,673,633.65
  5. Step 5: Solve for x
    x = 5,852,673,633.65/88,311
  6. Step 6: Final answer
    x = 66,273.44

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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.