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Finding the Fourth Proportional to 170,717.96, 256,109.88 and 65,528.72

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Solution

The fourth proportional to 170,717.96, 256,109.88 and 65,528.72 is: 98,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,717.96 : 256,109.88 = 65,528.72 : x
  2. Step 2: Convert to fraction form
    170,717.96/256,109.88 = 65,528.72/x
  3. Step 3: Cross multiply
    170,717.96x = 256,109.88 × 65,528.72
  4. Step 4: Simplify right side
    170,717.96x = 16,782,552,615.75
  5. Step 5: Solve for x
    x = 16,782,552,615.75/170,717.96
  6. Step 6: Final answer
    x = 98,305.72

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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.