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Finding the Fourth Proportional to 175,870.85, 263,842.85 and 70,689.85

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Solution

The fourth proportional to 175,870.85, 263,842.85 and 70,689.85 is: 106,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,870.85 : 263,842.85 = 70,689.85 : x
  2. Step 2: Convert to fraction form
    175,870.85/263,842.85 = 70,689.85/x
  3. Step 3: Cross multiply
    175,870.85x = 263,842.85 × 70,689.85
  4. Step 4: Simplify right side
    175,870.85x = 18,651,011,007.19
  5. Step 5: Solve for x
    x = 18,651,011,007.19/175,870.85
  6. Step 6: Final answer
    x = 106,049.48

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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.