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Finding the Fourth Proportional to 295,685.60, 443,528.40 and 108,672.80

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Solution

The fourth proportional to 295,685.60, 443,528.40 and 108,672.80 is: 163,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,685.60 : 443,528.40 = 108,672.80 : x
  2. Step 2: Convert to fraction form
    295,685.60/443,528.40 = 108,672.80/x
  3. Step 3: Cross multiply
    295,685.60x = 443,528.40 × 108,672.80
  4. Step 4: Simplify right side
    295,685.60x = 48,199,473,107.52
  5. Step 5: Solve for x
    x = 48,199,473,107.52/295,685.60
  6. Step 6: Final answer
    x = 163,009.20

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1.5x scale

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.