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Finding the Fourth Proportional to 125,171.70, 187,515.60 and 69,599.22

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Solution

The fourth proportional to 125,171.70, 187,515.60 and 69,599.22 is: 104,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,171.70 : 187,515.60 = 69,599.22 : x
  2. Step 2: Convert to fraction form
    125,171.70/187,515.60 = 69,599.22/x
  3. Step 3: Cross multiply
    125,171.70x = 187,515.60 × 69,599.22
  4. Step 4: Simplify right side
    125,171.70x = 13,050,939,497.83
  5. Step 5: Solve for x
    x = 13,050,939,497.83/125,171.70
  6. Step 6: Final answer
    x = 104,264.30

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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.