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Finding the Fourth Proportional to 104,156.74, 143,759.64 and 67,793.68

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Solution

The fourth proportional to 104,156.74, 143,759.64 and 67,793.68 is: 93,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.74 : 143,759.64 = 67,793.68 : x
  2. Step 2: Convert to fraction form
    104,156.74/143,759.64 = 67,793.68/x
  3. Step 3: Cross multiply
    104,156.74x = 143,759.64 × 67,793.68
  4. Step 4: Simplify right side
    104,156.74x = 9,745,995,031.08
  5. Step 5: Solve for x
    x = 9,745,995,031.08/104,156.74
  6. Step 6: Final answer
    x = 93,570.47

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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.