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Finding the Fourth Proportional to 69,244.71, 103,846.56 and 19,312.76

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Solution

The fourth proportional to 69,244.71, 103,846.56 and 19,312.76 is: 28,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,244.71 : 103,846.56 = 19,312.76 : x
  2. Step 2: Convert to fraction form
    69,244.71/103,846.56 = 19,312.76/x
  3. Step 3: Cross multiply
    69,244.71x = 103,846.56 × 19,312.76
  4. Step 4: Simplify right side
    69,244.71x = 2,005,563,170.87
  5. Step 5: Solve for x
    x = 2,005,563,170.87/69,244.71
  6. Step 6: Final answer
    x = 28,963.41

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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.