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Finding the Fourth Proportional to 69,277.20, 103,915.80 and 24,905.40

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Solution

The fourth proportional to 69,277.20, 103,915.80 and 24,905.40 is: 37,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,277.20 : 103,915.80 = 24,905.40 : x
  2. Step 2: Convert to fraction form
    69,277.20/103,915.80 = 24,905.40/x
  3. Step 3: Cross multiply
    69,277.20x = 103,915.80 × 24,905.40
  4. Step 4: Simplify right side
    69,277.20x = 2,588,064,565.32
  5. Step 5: Solve for x
    x = 2,588,064,565.32/69,277.20
  6. Step 6: Final answer
    x = 37,358.10

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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.