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Finding the Fourth Proportional to 207,223.72, 285,900.24 and 125,521.72

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Solution

The fourth proportional to 207,223.72, 285,900.24 and 125,521.72 is: 173,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,223.72 : 285,900.24 = 125,521.72 : x
  2. Step 2: Convert to fraction form
    207,223.72/285,900.24 = 125,521.72/x
  3. Step 3: Cross multiply
    207,223.72x = 285,900.24 × 125,521.72
  4. Step 4: Simplify right side
    207,223.72x = 35,886,689,873.21
  5. Step 5: Solve for x
    x = 35,886,689,873.21/207,223.72
  6. Step 6: Final answer
    x = 173,178.48

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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.