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Finding the Fourth Proportional to 170,765.40, 256,052.10 and 65,587.80

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Solution

The fourth proportional to 170,765.40, 256,052.10 and 65,587.80 is: 98,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,765.40 : 256,052.10 = 65,587.80 : x
  2. Step 2: Convert to fraction form
    170,765.40/256,052.10 = 65,587.80/x
  3. Step 3: Cross multiply
    170,765.40x = 256,052.10 × 65,587.80
  4. Step 4: Simplify right side
    170,765.40x = 16,793,893,924.38
  5. Step 5: Solve for x
    x = 16,793,893,924.38/170,765.40
  6. Step 6: Final answer
    x = 98,344.83

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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.