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Finding the Fourth Proportional to 170,868.40, 256,302.60 and 65,690.80

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Solution

The fourth proportional to 170,868.40, 256,302.60 and 65,690.80 is: 98,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.40 : 256,302.60 = 65,690.80 : x
  2. Step 2: Convert to fraction form
    170,868.40/256,302.60 = 65,690.80/x
  3. Step 3: Cross multiply
    170,868.40x = 256,302.60 × 65,690.80
  4. Step 4: Simplify right side
    170,868.40x = 16,836,722,836.08
  5. Step 5: Solve for x
    x = 16,836,722,836.08/170,868.40
  6. Step 6: Final answer
    x = 98,536.20

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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.