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Finding the Fourth Proportional to 215,438.88, 297,317.46 and 119,943.48

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Solution

The fourth proportional to 215,438.88, 297,317.46 and 119,943.48 is: 165,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,438.88 : 297,317.46 = 119,943.48 : x
  2. Step 2: Convert to fraction form
    215,438.88/297,317.46 = 119,943.48/x
  3. Step 3: Cross multiply
    215,438.88x = 297,317.46 × 119,943.48
  4. Step 4: Simplify right side
    215,438.88x = 35,661,290,817.16
  5. Step 5: Solve for x
    x = 35,661,290,817.16/215,438.88
  6. Step 6: Final answer
    x = 165,528.58

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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.