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Finding the Fourth Proportional to 211,673.70, 317,344.08 and 144,911.46

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Solution

The fourth proportional to 211,673.70, 317,344.08 and 144,911.46 is: 217,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,673.70 : 317,344.08 = 144,911.46 : x
  2. Step 2: Convert to fraction form
    211,673.70/317,344.08 = 144,911.46/x
  3. Step 3: Cross multiply
    211,673.70x = 317,344.08 × 144,911.46
  4. Step 4: Simplify right side
    211,673.70x = 45,986,793,955.16
  5. Step 5: Solve for x
    x = 45,986,793,955.16/211,673.70
  6. Step 6: Final answer
    x = 217,253.22

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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.