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Finding the Fourth Proportional to 247,017.84, 340,890.96 and 151,577.28

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Solution

The fourth proportional to 247,017.84, 340,890.96 and 151,577.28 is: 209,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,017.84 : 340,890.96 = 151,577.28 : x
  2. Step 2: Convert to fraction form
    247,017.84/340,890.96 = 151,577.28/x
  3. Step 3: Cross multiply
    247,017.84x = 340,890.96 × 151,577.28
  4. Step 4: Simplify right side
    247,017.84x = 51,671,324,493.39
  5. Step 5: Solve for x
    x = 51,671,324,493.39/247,017.84
  6. Step 6: Final answer
    x = 209,180.54

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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.