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Finding the Fourth Proportional to 70,830.04, 106,245.10 and 67,755.08

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Solution

The fourth proportional to 70,830.04, 106,245.10 and 67,755.08 is: 101,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,830.04 : 106,245.10 = 67,755.08 : x
  2. Step 2: Convert to fraction form
    70,830.04/106,245.10 = 67,755.08/x
  3. Step 3: Cross multiply
    70,830.04x = 106,245.10 × 67,755.08
  4. Step 4: Simplify right side
    70,830.04x = 7,198,645,250.11
  5. Step 5: Solve for x
    x = 7,198,645,250.11/70,830.04
  6. Step 6: Final answer
    x = 101,632.66

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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.