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Finding the Fourth Proportional to 125,246.97, 172,834.56 and 70,797.96

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Solution

The fourth proportional to 125,246.97, 172,834.56 and 70,797.96 is: 97,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,246.97 : 172,834.56 = 70,797.96 : x
  2. Step 2: Convert to fraction form
    125,246.97/172,834.56 = 70,797.96/x
  3. Step 3: Cross multiply
    125,246.97x = 172,834.56 × 70,797.96
  4. Step 4: Simplify right side
    125,246.97x = 12,236,334,265.50
  5. Step 5: Solve for x
    x = 12,236,334,265.50/125,246.97
  6. Step 6: Final answer
    x = 97,697.65

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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.