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Finding the Fourth Proportional to 215,376.92, 297,213.54 and 119,881.16

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Solution

The fourth proportional to 215,376.92, 297,213.54 and 119,881.16 is: 165,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,376.92 : 297,213.54 = 119,881.16 : x
  2. Step 2: Convert to fraction form
    215,376.92/297,213.54 = 119,881.16/x
  3. Step 3: Cross multiply
    215,376.92x = 297,213.54 × 119,881.16
  4. Step 4: Simplify right side
    215,376.92x = 35,630,303,942.91
  5. Step 5: Solve for x
    x = 35,630,303,942.91/215,376.92
  6. Step 6: Final answer
    x = 165,432.32

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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.