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Finding the Fourth Proportional to 84,132.88, 116,074.24 and 53,934.86

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Solution

The fourth proportional to 84,132.88, 116,074.24 and 53,934.86 is: 74,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,132.88 : 116,074.24 = 53,934.86 : x
  2. Step 2: Convert to fraction form
    84,132.88/116,074.24 = 53,934.86/x
  3. Step 3: Cross multiply
    84,132.88x = 116,074.24 × 53,934.86
  4. Step 4: Simplify right side
    84,132.88x = 6,260,448,039.35
  5. Step 5: Solve for x
    x = 6,260,448,039.35/84,132.88
  6. Step 6: Final answer
    x = 74,411.43

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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.