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Finding the Fourth Proportional to 88,969, 122,781.06 and 49,225

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Solution

The fourth proportional to 88,969, 122,781.06 and 49,225 is: 67,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,969 : 122,781.06 = 49,225 : x
  2. Step 2: Convert to fraction form
    88,969/122,781.06 = 49,225/x
  3. Step 3: Cross multiply
    88,969x = 122,781.06 × 49,225
  4. Step 4: Simplify right side
    88,969x = 6,043,897,678.50
  5. Step 5: Solve for x
    x = 6,043,897,678.50/88,969
  6. Step 6: Final answer
    x = 67,932.62

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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.