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Finding the Fourth Proportional to 88,505.64, 132,452.28 and 84,831.48

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Solution

The fourth proportional to 88,505.64, 132,452.28 and 84,831.48 is: 126,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,505.64 : 132,452.28 = 84,831.48 : x
  2. Step 2: Convert to fraction form
    88,505.64/132,452.28 = 84,831.48/x
  3. Step 3: Cross multiply
    88,505.64x = 132,452.28 × 84,831.48
  4. Step 4: Simplify right side
    88,505.64x = 11,236,122,941.77
  5. Step 5: Solve for x
    x = 11,236,122,941.77/88,505.64
  6. Step 6: Final answer
    x = 126,953.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.