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Finding the Fourth Proportional to 238,874.40, 358,311.60 and 96,719.40

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Solution

The fourth proportional to 238,874.40, 358,311.60 and 96,719.40 is: 145,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,874.40 : 358,311.60 = 96,719.40 : x
  2. Step 2: Convert to fraction form
    238,874.40/358,311.60 = 96,719.40/x
  3. Step 3: Cross multiply
    238,874.40x = 358,311.60 × 96,719.40
  4. Step 4: Simplify right side
    238,874.40x = 34,655,682,965.04
  5. Step 5: Solve for x
    x = 34,655,682,965.04/238,874.40
  6. Step 6: Final answer
    x = 145,079.10

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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.