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Finding the Fourth Proportional to 88,399.66, 121,994.53 and 48,114.89

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Solution

The fourth proportional to 88,399.66, 121,994.53 and 48,114.89 is: 66,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,399.66 : 121,994.53 = 48,114.89 : x
  2. Step 2: Convert to fraction form
    88,399.66/121,994.53 = 48,114.89/x
  3. Step 3: Cross multiply
    88,399.66x = 121,994.53 × 48,114.89
  4. Step 4: Simplify right side
    88,399.66x = 5,869,753,391.55
  5. Step 5: Solve for x
    x = 5,869,753,391.55/88,399.66
  6. Step 6: Final answer
    x = 66,400.18

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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.