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Finding the Fourth Proportional to 217,372.41, 299,835.90 and 157,031.73

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Solution

The fourth proportional to 217,372.41, 299,835.90 and 157,031.73 is: 216,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,372.41 : 299,835.90 = 157,031.73 : x
  2. Step 2: Convert to fraction form
    217,372.41/299,835.90 = 157,031.73/x
  3. Step 3: Cross multiply
    217,372.41x = 299,835.90 × 157,031.73
  4. Step 4: Simplify right side
    217,372.41x = 47,083,750,093.11
  5. Step 5: Solve for x
    x = 47,083,750,093.11/217,372.41
  6. Step 6: Final answer
    x = 216,604.08

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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.