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Finding the Fourth Proportional to 238,776.12, 358,165.80 and 113,738.04

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Solution

The fourth proportional to 238,776.12, 358,165.80 and 113,738.04 is: 170,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,776.12 : 358,165.80 = 113,738.04 : x
  2. Step 2: Convert to fraction form
    238,776.12/358,165.80 = 113,738.04/x
  3. Step 3: Cross multiply
    238,776.12x = 358,165.80 × 113,738.04
  4. Step 4: Simplify right side
    238,776.12x = 40,737,076,087.03
  5. Step 5: Solve for x
    x = 40,737,076,087.03/238,776.12
  6. Step 6: Final answer
    x = 170,607.83

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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.