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Finding the Fourth Proportional to 170,213.70, 255,320.55 and 151,842.90

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Solution

The fourth proportional to 170,213.70, 255,320.55 and 151,842.90 is: 227,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,213.70 : 255,320.55 = 151,842.90 : x
  2. Step 2: Convert to fraction form
    170,213.70/255,320.55 = 151,842.90/x
  3. Step 3: Cross multiply
    170,213.70x = 255,320.55 × 151,842.90
  4. Step 4: Simplify right side
    170,213.70x = 38,768,612,741.60
  5. Step 5: Solve for x
    x = 38,768,612,741.60/170,213.70
  6. Step 6: Final answer
    x = 227,764.35

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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.