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Finding the Fourth Proportional to 96,534.60, 144,801.90 and 81,808.80

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Solution

The fourth proportional to 96,534.60, 144,801.90 and 81,808.80 is: 122,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,534.60 : 144,801.90 = 81,808.80 : x
  2. Step 2: Convert to fraction form
    96,534.60/144,801.90 = 81,808.80/x
  3. Step 3: Cross multiply
    96,534.60x = 144,801.90 × 81,808.80
  4. Step 4: Simplify right side
    96,534.60x = 11,846,069,676.72
  5. Step 5: Solve for x
    x = 11,846,069,676.72/96,534.60
  6. Step 6: Final answer
    x = 122,713.20

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1.5x scale

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.