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Finding the Fourth Proportional to 238,081.92, 328,557.05 and 130,661.94

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Solution

The fourth proportional to 238,081.92, 328,557.05 and 130,661.94 is: 180,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,081.92 : 328,557.05 = 130,661.94 : x
  2. Step 2: Convert to fraction form
    238,081.92/328,557.05 = 130,661.94/x
  3. Step 3: Cross multiply
    238,081.92x = 328,557.05 × 130,661.94
  4. Step 4: Simplify right side
    238,081.92x = 42,929,901,553.68
  5. Step 5: Solve for x
    x = 42,929,901,553.68/238,081.92
  6. Step 6: Final answer
    x = 180,315.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.