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Finding the Fourth Proportional to 63,154.88, 87,153.74 and 34,860.57

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Solution

The fourth proportional to 63,154.88, 87,153.74 and 34,860.57 is: 48,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,154.88 : 87,153.74 = 34,860.57 : x
  2. Step 2: Convert to fraction form
    63,154.88/87,153.74 = 34,860.57/x
  3. Step 3: Cross multiply
    63,154.88x = 87,153.74 × 34,860.57
  4. Step 4: Simplify right side
    63,154.88x = 3,038,228,879.73
  5. Step 5: Solve for x
    x = 3,038,228,879.73/63,154.88
  6. Step 6: Final answer
    x = 48,107.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.