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Finding the Fourth Proportional to 170,172.28, 255,275.88 and 65,079.64

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Solution

The fourth proportional to 170,172.28, 255,275.88 and 65,079.64 is: 97,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,172.28 : 255,275.88 = 65,079.64 : x
  2. Step 2: Convert to fraction form
    170,172.28/255,275.88 = 65,079.64/x
  3. Step 3: Cross multiply
    170,172.28x = 255,275.88 × 65,079.64
  4. Step 4: Simplify right side
    170,172.28x = 16,613,262,371.08
  5. Step 5: Solve for x
    x = 16,613,262,371.08/170,172.28
  6. Step 6: Final answer
    x = 97,626.14

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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.