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Finding the Fourth Proportional to 88,969.50, 122,799.78 and 51,265.62

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Solution

The fourth proportional to 88,969.50, 122,799.78 and 51,265.62 is: 70,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,969.50 : 122,799.78 = 51,265.62 : x
  2. Step 2: Convert to fraction form
    88,969.50/122,799.78 = 51,265.62/x
  3. Step 3: Cross multiply
    88,969.50x = 122,799.78 × 51,265.62
  4. Step 4: Simplify right side
    88,969.50x = 6,295,406,857.56
  5. Step 5: Solve for x
    x = 6,295,406,857.56/88,969.50
  6. Step 6: Final answer
    x = 70,759.16

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1.5x scale

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.