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Finding the Fourth Proportional to 247,003.76, 340,864.38 and 133,826.50

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Solution

The fourth proportional to 247,003.76, 340,864.38 and 133,826.50 is: 184,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,003.76 : 340,864.38 = 133,826.50 : x
  2. Step 2: Convert to fraction form
    247,003.76/340,864.38 = 133,826.50/x
  3. Step 3: Cross multiply
    247,003.76x = 340,864.38 × 133,826.50
  4. Step 4: Simplify right side
    247,003.76x = 45,616,686,950.07
  5. Step 5: Solve for x
    x = 45,616,686,950.07/247,003.76
  6. Step 6: Final answer
    x = 184,680.13

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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.