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Finding the Fourth Proportional to 230,565.53, 318,172.64 and 127,203.86

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Solution

The fourth proportional to 230,565.53, 318,172.64 and 127,203.86 is: 175,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,565.53 : 318,172.64 = 127,203.86 : x
  2. Step 2: Convert to fraction form
    230,565.53/318,172.64 = 127,203.86/x
  3. Step 3: Cross multiply
    230,565.53x = 318,172.64 × 127,203.86
  4. Step 4: Simplify right side
    230,565.53x = 40,472,787,954.39
  5. Step 5: Solve for x
    x = 40,472,787,954.39/230,565.53
  6. Step 6: Final answer
    x = 175,537.03

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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.