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Finding the Fourth Proportional to 170,836.40, 256,254.60 and 65,658.80

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Solution

The fourth proportional to 170,836.40, 256,254.60 and 65,658.80 is: 98,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,836.40 : 256,254.60 = 65,658.80 : x
  2. Step 2: Convert to fraction form
    170,836.40/256,254.60 = 65,658.80/x
  3. Step 3: Cross multiply
    170,836.40x = 256,254.60 × 65,658.80
  4. Step 4: Simplify right side
    170,836.40x = 16,825,369,530.48
  5. Step 5: Solve for x
    x = 16,825,369,530.48/170,836.40
  6. Step 6: Final answer
    x = 98,488.20

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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.