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Finding the Fourth Proportional to 295,686.40, 443,432.40 and 108,673.60

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Solution

The fourth proportional to 295,686.40, 443,432.40 and 108,673.60 is: 162,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,686.40 : 443,432.40 = 108,673.60 : x
  2. Step 2: Convert to fraction form
    295,686.40/443,432.40 = 108,673.60/x
  3. Step 3: Cross multiply
    295,686.40x = 443,432.40 × 108,673.60
  4. Step 4: Simplify right side
    295,686.40x = 48,189,395,264.64
  5. Step 5: Solve for x
    x = 48,189,395,264.64/295,686.40
  6. Step 6: Final answer
    x = 162,974.68

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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.