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Finding the Fourth Proportional to 69,112.70, 103,669.05 and 24,740.90

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Solution

The fourth proportional to 69,112.70, 103,669.05 and 24,740.90 is: 37,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,112.70 : 103,669.05 = 24,740.90 : x
  2. Step 2: Convert to fraction form
    69,112.70/103,669.05 = 24,740.90/x
  3. Step 3: Cross multiply
    69,112.70x = 103,669.05 × 24,740.90
  4. Step 4: Simplify right side
    69,112.70x = 2,564,865,599.15
  5. Step 5: Solve for x
    x = 2,564,865,599.15/69,112.70
  6. Step 6: Final answer
    x = 37,111.35

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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.