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Finding the Fourth Proportional to 226,672.94, 312,798.78 and 124,691.93

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Solution

The fourth proportional to 226,672.94, 312,798.78 and 124,691.93 is: 172,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,672.94 : 312,798.78 = 124,691.93 : x
  2. Step 2: Convert to fraction form
    226,672.94/312,798.78 = 124,691.93/x
  3. Step 3: Cross multiply
    226,672.94x = 312,798.78 × 124,691.93
  4. Step 4: Simplify right side
    226,672.94x = 39,003,483,579.85
  5. Step 5: Solve for x
    x = 39,003,483,579.85/226,672.94
  6. Step 6: Final answer
    x = 172,069.43

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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.