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Finding the Fourth Proportional to 116,064.72, 159,126.20 and 113,965.20

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Solution

The fourth proportional to 116,064.72, 159,126.20 and 113,965.20 is: 156,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,064.72 : 159,126.20 = 113,965.20 : x
  2. Step 2: Convert to fraction form
    116,064.72/159,126.20 = 113,965.20/x
  3. Step 3: Cross multiply
    116,064.72x = 159,126.20 × 113,965.20
  4. Step 4: Simplify right side
    116,064.72x = 18,134,849,208.24
  5. Step 5: Solve for x
    x = 18,134,849,208.24/116,064.72
  6. Step 6: Final answer
    x = 156,247.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.