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Finding the Fourth Proportional to 211,758.40, 316,114.39 and 181,446.27

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Solution

The fourth proportional to 211,758.40, 316,114.39 and 181,446.27 is: 270,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,758.40 : 316,114.39 = 181,446.27 : x
  2. Step 2: Convert to fraction form
    211,758.40/316,114.39 = 181,446.27/x
  3. Step 3: Cross multiply
    211,758.40x = 316,114.39 × 181,446.27
  4. Step 4: Simplify right side
    211,758.40x = 57,357,776,958.83
  5. Step 5: Solve for x
    x = 57,357,776,958.83/211,758.40
  6. Step 6: Final answer
    x = 270,864.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.