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Finding the Fourth Proportional to 163,689.60, 245,764.80 and 101,481.60

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Solution

The fourth proportional to 163,689.60, 245,764.80 and 101,481.60 is: 152,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,689.60 : 245,764.80 = 101,481.60 : x
  2. Step 2: Convert to fraction form
    163,689.60/245,764.80 = 101,481.60/x
  3. Step 3: Cross multiply
    163,689.60x = 245,764.80 × 101,481.60
  4. Step 4: Simplify right side
    163,689.60x = 24,940,605,127.68
  5. Step 5: Solve for x
    x = 24,940,605,127.68/163,689.60
  6. Step 6: Final answer
    x = 152,365.24

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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.