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Finding the Fourth Proportional to 88,114.73, 121,661.53 and 54,168.75

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Solution

The fourth proportional to 88,114.73, 121,661.53 and 54,168.75 is: 74,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,114.73 : 121,661.53 = 54,168.75 : x
  2. Step 2: Convert to fraction form
    88,114.73/121,661.53 = 54,168.75/x
  3. Step 3: Cross multiply
    88,114.73x = 121,661.53 × 54,168.75
  4. Step 4: Simplify right side
    88,114.73x = 6,590,252,867.77
  5. Step 5: Solve for x
    x = 6,590,252,867.77/88,114.73
  6. Step 6: Final answer
    x = 74,791.73

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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.