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Finding the Fourth Proportional to 69,158.70, 103,750.20 and 24,811.20

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Solution

The fourth proportional to 69,158.70, 103,750.20 and 24,811.20 is: 37,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,158.70 : 103,750.20 = 24,811.20 : x
  2. Step 2: Convert to fraction form
    69,158.70/103,750.20 = 24,811.20/x
  3. Step 3: Cross multiply
    69,158.70x = 103,750.20 × 24,811.20
  4. Step 4: Simplify right side
    69,158.70x = 2,574,166,962.24
  5. Step 5: Solve for x
    x = 2,574,166,962.24/69,158.70
  6. Step 6: Final answer
    x = 37,221.16

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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.