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Finding the Fourth Proportional to 217,215.90, 325,386.45 and 150,731.10

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Solution

The fourth proportional to 217,215.90, 325,386.45 and 150,731.10 is: 225,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,215.90 : 325,386.45 = 150,731.10 : x
  2. Step 2: Convert to fraction form
    217,215.90/325,386.45 = 150,731.10/x
  3. Step 3: Cross multiply
    217,215.90x = 325,386.45 × 150,731.10
  4. Step 4: Simplify right side
    217,215.90x = 49,045,857,533.60
  5. Step 5: Solve for x
    x = 49,045,857,533.60/217,215.90
  6. Step 6: Final answer
    x = 225,793.13

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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.