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Finding the Fourth Proportional to 247,911.70, 348,009.50 and 247,911.70

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Solution

The fourth proportional to 247,911.70, 348,009.50 and 247,911.70 is: 348,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,911.70 : 348,009.50 = 247,911.70 : x
  2. Step 2: Convert to fraction form
    247,911.70/348,009.50 = 247,911.70/x
  3. Step 3: Cross multiply
    247,911.70x = 348,009.50 × 247,911.70
  4. Step 4: Simplify right side
    247,911.70x = 86,275,626,761.15
  5. Step 5: Solve for x
    x = 86,275,626,761.15/247,911.70
  6. Step 6: Final answer
    x = 348,009.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.