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Finding the Fourth Proportional to 170,618.08, 255,927.12 and 87,459.04

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Solution

The fourth proportional to 170,618.08, 255,927.12 and 87,459.04 is: 131,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,618.08 : 255,927.12 = 87,459.04 : x
  2. Step 2: Convert to fraction form
    170,618.08/255,927.12 = 87,459.04/x
  3. Step 3: Cross multiply
    170,618.08x = 255,927.12 × 87,459.04
  4. Step 4: Simplify right side
    170,618.08x = 22,383,140,225.16
  5. Step 5: Solve for x
    x = 22,383,140,225.16/170,618.08
  6. Step 6: Final answer
    x = 131,188.56

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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.