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Finding the Fourth Proportional to 313,269.18, 432,311.90 and 170,029.25

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Solution

The fourth proportional to 313,269.18, 432,311.90 and 170,029.25 is: 234,640.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,269.18 : 432,311.90 = 170,029.25 : x
  2. Step 2: Convert to fraction form
    313,269.18/432,311.90 = 170,029.25/x
  3. Step 3: Cross multiply
    313,269.18x = 432,311.90 × 170,029.25
  4. Step 4: Simplify right side
    313,269.18x = 73,505,665,111.37
  5. Step 5: Solve for x
    x = 73,505,665,111.37/313,269.18
  6. Step 6: Final answer
    x = 234,640.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.