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Finding the Fourth Proportional to 211,674.70, 317,345.58 and 144,912.46

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Solution

The fourth proportional to 211,674.70, 317,345.58 and 144,912.46 is: 217,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,674.70 : 317,345.58 = 144,912.46 : x
  2. Step 2: Convert to fraction form
    211,674.70/317,345.58 = 144,912.46/x
  3. Step 3: Cross multiply
    211,674.70x = 317,345.58 × 144,912.46
  4. Step 4: Simplify right side
    211,674.70x = 45,987,328,667.93
  5. Step 5: Solve for x
    x = 45,987,328,667.93/211,674.70
  6. Step 6: Final answer
    x = 217,254.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.