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Finding the Fourth Proportional to 347,112.60, 520,085.70 and 169,236.60

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Solution

The fourth proportional to 347,112.60, 520,085.70 and 169,236.60 is: 253,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,112.60 : 520,085.70 = 169,236.60 : x
  2. Step 2: Convert to fraction form
    347,112.60/520,085.70 = 169,236.60/x
  3. Step 3: Cross multiply
    347,112.60x = 520,085.70 × 169,236.60
  4. Step 4: Simplify right side
    347,112.60x = 88,017,535,576.62
  5. Step 5: Solve for x
    x = 88,017,535,576.62/347,112.60
  6. Step 6: Final answer
    x = 253,570.56

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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.