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Finding the Fourth Proportional to 163,943.20, 245,866.20 and 64,045.90

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Solution

The fourth proportional to 163,943.20, 245,866.20 and 64,045.90 is: 96,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,943.20 : 245,866.20 = 64,045.90 : x
  2. Step 2: Convert to fraction form
    163,943.20/245,866.20 = 64,045.90/x
  3. Step 3: Cross multiply
    163,943.20x = 245,866.20 × 64,045.90
  4. Step 4: Simplify right side
    163,943.20x = 15,746,722,058.58
  5. Step 5: Solve for x
    x = 15,746,722,058.58/163,943.20
  6. Step 6: Final answer
    x = 96,049.86

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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.