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Finding the Fourth Proportional to 295,685.40, 443,430.90 and 108,672.60

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Solution

The fourth proportional to 295,685.40, 443,430.90 and 108,672.60 is: 162,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,685.40 : 443,430.90 = 108,672.60 : x
  2. Step 2: Convert to fraction form
    295,685.40/443,430.90 = 108,672.60/x
  3. Step 3: Cross multiply
    295,685.40x = 443,430.90 × 108,672.60
  4. Step 4: Simplify right side
    295,685.40x = 48,188,788,823.34
  5. Step 5: Solve for x
    x = 48,188,788,823.34/295,685.40
  6. Step 6: Final answer
    x = 162,973.18

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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.