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Finding the Fourth Proportional to 226,695.90, 312,828 and 124,704.74

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Solution

The fourth proportional to 226,695.90, 312,828 and 124,704.74 is: 172,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,695.90 : 312,828 = 124,704.74 : x
  2. Step 2: Convert to fraction form
    226,695.90/312,828 = 124,704.74/x
  3. Step 3: Cross multiply
    226,695.90x = 312,828 × 124,704.74
  4. Step 4: Simplify right side
    226,695.90x = 39,011,134,404.72
  5. Step 5: Solve for x
    x = 39,011,134,404.72/226,695.90
  6. Step 6: Final answer
    x = 172,085.75

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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.