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Finding the Fourth Proportional to 226,707.61, 312,858.90 and 124,734.41

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Solution

The fourth proportional to 226,707.61, 312,858.90 and 124,734.41 is: 172,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,707.61 : 312,858.90 = 124,734.41 : x
  2. Step 2: Convert to fraction form
    226,707.61/312,858.90 = 124,734.41/x
  3. Step 3: Cross multiply
    226,707.61x = 312,858.90 × 124,734.41
  4. Step 4: Simplify right side
    226,707.61x = 39,024,269,681.08
  5. Step 5: Solve for x
    x = 39,024,269,681.08/226,707.61
  6. Step 6: Final answer
    x = 172,134.81

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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.