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Finding the Fourth Proportional to 163,793.45, 245,689.35 and 63,963.78

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Solution

The fourth proportional to 163,793.45, 245,689.35 and 63,963.78 is: 95,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,793.45 : 245,689.35 = 63,963.78 : x
  2. Step 2: Convert to fraction form
    163,793.45/245,689.35 = 63,963.78/x
  3. Step 3: Cross multiply
    163,793.45x = 245,689.35 × 63,963.78
  4. Step 4: Simplify right side
    163,793.45x = 15,715,219,531.74
  5. Step 5: Solve for x
    x = 15,715,219,531.74/163,793.45
  6. Step 6: Final answer
    x = 95,945.35

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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.