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Finding the Fourth Proportional to 238,797.16, 358,257.78 and 70,311.94

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Solution

The fourth proportional to 238,797.16, 358,257.78 and 70,311.94 is: 105,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,797.16 : 358,257.78 = 70,311.94 : x
  2. Step 2: Convert to fraction form
    238,797.16/358,257.78 = 70,311.94/x
  3. Step 3: Cross multiply
    238,797.16x = 358,257.78 × 70,311.94
  4. Step 4: Simplify right side
    238,797.16x = 25,189,799,531.89
  5. Step 5: Solve for x
    x = 25,189,799,531.89/238,797.16
  6. Step 6: Final answer
    x = 105,486.18

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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.