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Finding the Fourth Proportional to 215,418.34, 297,287.72 and 119,925.01

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Solution

The fourth proportional to 215,418.34, 297,287.72 and 119,925.01 is: 165,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,418.34 : 297,287.72 = 119,925.01 : x
  2. Step 2: Convert to fraction form
    215,418.34/297,287.72 = 119,925.01/x
  3. Step 3: Cross multiply
    215,418.34x = 297,287.72 × 119,925.01
  4. Step 4: Simplify right side
    215,418.34x = 35,652,232,793.88
  5. Step 5: Solve for x
    x = 35,652,232,793.88/215,418.34
  6. Step 6: Final answer
    x = 165,502.31

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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.