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Finding the Fourth Proportional to 104,872.56, 157,307.84 and 42,528.24

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Solution

The fourth proportional to 104,872.56, 157,307.84 and 42,528.24 is: 63,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,872.56 : 157,307.84 = 42,528.24 : x
  2. Step 2: Convert to fraction form
    104,872.56/157,307.84 = 42,528.24/x
  3. Step 3: Cross multiply
    104,872.56x = 157,307.84 × 42,528.24
  4. Step 4: Simplify right side
    104,872.56x = 6,690,025,573.40
  5. Step 5: Solve for x
    x = 6,690,025,573.40/104,872.56
  6. Step 6: Final answer
    x = 63,791.95

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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.