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Finding the Fourth Proportional to 230,696.55, 318,301.11 and 135,151.92

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Solution

The fourth proportional to 230,696.55, 318,301.11 and 135,151.92 is: 186,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,696.55 : 318,301.11 = 135,151.92 : x
  2. Step 2: Convert to fraction form
    230,696.55/318,301.11 = 135,151.92/x
  3. Step 3: Cross multiply
    230,696.55x = 318,301.11 × 135,151.92
  4. Step 4: Simplify right side
    230,696.55x = 43,019,006,154.63
  5. Step 5: Solve for x
    x = 43,019,006,154.63/230,696.55
  6. Step 6: Final answer
    x = 186,474.42

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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.