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Finding the Fourth Proportional to 88,107.34, 121,584.88 and 47,820.24

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Solution

The fourth proportional to 88,107.34, 121,584.88 and 47,820.24 is: 65,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,107.34 : 121,584.88 = 47,820.24 : x
  2. Step 2: Convert to fraction form
    88,107.34/121,584.88 = 47,820.24/x
  3. Step 3: Cross multiply
    88,107.34x = 121,584.88 × 47,820.24
  4. Step 4: Simplify right side
    88,107.34x = 5,814,218,201.75
  5. Step 5: Solve for x
    x = 5,814,218,201.75/88,107.34
  6. Step 6: Final answer
    x = 65,990.17

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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.