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Finding the Fourth Proportional to 170,142.28, 255,230.88 and 65,049.64

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Solution

The fourth proportional to 170,142.28, 255,230.88 and 65,049.64 is: 97,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,142.28 : 255,230.88 = 65,049.64 : x
  2. Step 2: Convert to fraction form
    170,142.28/255,230.88 = 65,049.64/x
  3. Step 3: Cross multiply
    170,142.28x = 255,230.88 × 65,049.64
  4. Step 4: Simplify right side
    170,142.28x = 16,602,676,860.88
  5. Step 5: Solve for x
    x = 16,602,676,860.88/170,142.28
  6. Step 6: Final answer
    x = 97,581.14

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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.