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Finding the Fourth Proportional to 88,074.60, 121,548.90 and 49,834.10

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Solution

The fourth proportional to 88,074.60, 121,548.90 and 49,834.10 is: 68,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,074.60 : 121,548.90 = 49,834.10 : x
  2. Step 2: Convert to fraction form
    88,074.60/121,548.90 = 49,834.10/x
  3. Step 3: Cross multiply
    88,074.60x = 121,548.90 × 49,834.10
  4. Step 4: Simplify right side
    88,074.60x = 6,057,279,429.75
  5. Step 5: Solve for x
    x = 6,057,279,429.75/88,074.60
  6. Step 6: Final answer
    x = 68,774.42

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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.