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Finding the Fourth Proportional to 238,758.42, 358,238.91 and 112,395.90

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Solution

The fourth proportional to 238,758.42, 358,238.91 and 112,395.90 is: 168,641.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,758.42 : 358,238.91 = 112,395.90 : x
  2. Step 2: Convert to fraction form
    238,758.42/358,238.91 = 112,395.90/x
  3. Step 3: Cross multiply
    238,758.42x = 358,238.91 × 112,395.90
  4. Step 4: Simplify right side
    238,758.42x = 40,264,584,704.47
  5. Step 5: Solve for x
    x = 40,264,584,704.47/238,758.42
  6. Step 6: Final answer
    x = 168,641.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.