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Finding the Fourth Proportional to 106,891.22, 147,445.59 and 70,593

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Solution

The fourth proportional to 106,891.22, 147,445.59 and 70,593 is: 97,375.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,891.22 : 147,445.59 = 70,593 : x
  2. Step 2: Convert to fraction form
    106,891.22/147,445.59 = 70,593/x
  3. Step 3: Cross multiply
    106,891.22x = 147,445.59 × 70,593
  4. Step 4: Simplify right side
    106,891.22x = 10,408,626,534.87
  5. Step 5: Solve for x
    x = 10,408,626,534.87/106,891.22
  6. Step 6: Final answer
    x = 97,375.88

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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.