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Finding the Fourth Proportional to 88,225, 121,750.50 and 48,481

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Solution

The fourth proportional to 88,225, 121,750.50 and 48,481 is: 66,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,225 : 121,750.50 = 48,481 : x
  2. Step 2: Convert to fraction form
    88,225/121,750.50 = 48,481/x
  3. Step 3: Cross multiply
    88,225x = 121,750.50 × 48,481
  4. Step 4: Simplify right side
    88,225x = 5,902,585,990.50
  5. Step 5: Solve for x
    x = 5,902,585,990.50/88,225
  6. Step 6: Final answer
    x = 66,903.78

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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.