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Finding the Fourth Proportional to 125,069.44, 172,595.64 and 67,708.48

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Solution

The fourth proportional to 125,069.44, 172,595.64 and 67,708.48 is: 93,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,069.44 : 172,595.64 = 67,708.48 : x
  2. Step 2: Convert to fraction form
    125,069.44/172,595.64 = 67,708.48/x
  3. Step 3: Cross multiply
    125,069.44x = 172,595.64 × 67,708.48
  4. Step 4: Simplify right side
    125,069.44x = 11,686,188,439.03
  5. Step 5: Solve for x
    x = 11,686,188,439.03/125,069.44
  6. Step 6: Final answer
    x = 93,437.60

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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.