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Finding the Fourth Proportional to 96,679.40, 144,932.70 and 63,415.40

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Solution

The fourth proportional to 96,679.40, 144,932.70 and 63,415.40 is: 95,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,679.40 : 144,932.70 = 63,415.40 : x
  2. Step 2: Convert to fraction form
    96,679.40/144,932.70 = 63,415.40/x
  3. Step 3: Cross multiply
    96,679.40x = 144,932.70 × 63,415.40
  4. Step 4: Simplify right side
    96,679.40x = 9,190,965,143.58
  5. Step 5: Solve for x
    x = 9,190,965,143.58/96,679.40
  6. Step 6: Final answer
    x = 95,066.43

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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.