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Finding the Fourth Proportional to 123,344.70, 185,017.05 and 70,710.90

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Solution

The fourth proportional to 123,344.70, 185,017.05 and 70,710.90 is: 106,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,344.70 : 185,017.05 = 70,710.90 : x
  2. Step 2: Convert to fraction form
    123,344.70/185,017.05 = 70,710.90/x
  3. Step 3: Cross multiply
    123,344.70x = 185,017.05 × 70,710.90
  4. Step 4: Simplify right side
    123,344.70x = 13,082,722,120.85
  5. Step 5: Solve for x
    x = 13,082,722,120.85/123,344.70
  6. Step 6: Final answer
    x = 106,066.35

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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.