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Finding the Fourth Proportional to 215,448.12, 297,313.13 and 119,952.77

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Solution

The fourth proportional to 215,448.12, 297,313.13 and 119,952.77 is: 165,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,448.12 : 297,313.13 = 119,952.77 : x
  2. Step 2: Convert to fraction form
    215,448.12/297,313.13 = 119,952.77/x
  3. Step 3: Cross multiply
    215,448.12x = 297,313.13 × 119,952.77
  4. Step 4: Simplify right side
    215,448.12x = 35,663,532,314.19
  5. Step 5: Solve for x
    x = 35,663,532,314.19/215,448.12
  6. Step 6: Final answer
    x = 165,531.88

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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.