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Finding the Fourth Proportional to 70,973.90, 106,460.85 and 67,517.90

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Solution

The fourth proportional to 70,973.90, 106,460.85 and 67,517.90 is: 101,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,973.90 : 106,460.85 = 67,517.90 : x
  2. Step 2: Convert to fraction form
    70,973.90/106,460.85 = 67,517.90/x
  3. Step 3: Cross multiply
    70,973.90x = 106,460.85 × 67,517.90
  4. Step 4: Simplify right side
    70,973.90x = 7,188,013,024.22
  5. Step 5: Solve for x
    x = 7,188,013,024.22/70,973.90
  6. Step 6: Final answer
    x = 101,276.85

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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.