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Finding the Fourth Proportional to 163,572.80, 245,503.20 and 96,929.60

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Solution

The fourth proportional to 163,572.80, 245,503.20 and 96,929.60 is: 145,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,572.80 : 245,503.20 = 96,929.60 : x
  2. Step 2: Convert to fraction form
    163,572.80/245,503.20 = 96,929.60/x
  3. Step 3: Cross multiply
    163,572.80x = 245,503.20 × 96,929.60
  4. Step 4: Simplify right side
    163,572.80x = 23,796,526,974.72
  5. Step 5: Solve for x
    x = 23,796,526,974.72/163,572.80
  6. Step 6: Final answer
    x = 145,479.73

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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.