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Finding the Fourth Proportional to 238,679.41, 357,968.70 and 70,153.90

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Solution

The fourth proportional to 238,679.41, 357,968.70 and 70,153.90 is: 105,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,679.41 : 357,968.70 = 70,153.90 : x
  2. Step 2: Convert to fraction form
    238,679.41/357,968.70 = 70,153.90/x
  3. Step 3: Cross multiply
    238,679.41x = 357,968.70 × 70,153.90
  4. Step 4: Simplify right side
    238,679.41x = 25,112,900,382.93
  5. Step 5: Solve for x
    x = 25,112,900,382.93/238,679.41
  6. Step 6: Final answer
    x = 105,216.03

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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.