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Finding the Fourth Proportional to 295,953.60, 443,930.40 and 108,940.80

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Solution

The fourth proportional to 295,953.60, 443,930.40 and 108,940.80 is: 163,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,953.60 : 443,930.40 = 108,940.80 : x
  2. Step 2: Convert to fraction form
    295,953.60/443,930.40 = 108,940.80/x
  3. Step 3: Cross multiply
    295,953.60x = 443,930.40 × 108,940.80
  4. Step 4: Simplify right side
    295,953.60x = 48,362,132,920.32
  5. Step 5: Solve for x
    x = 48,362,132,920.32/295,953.60
  6. Step 6: Final answer
    x = 163,411.20

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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.