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Finding the Fourth Proportional to 248,018.82, 371,787.66 and 98,209.32

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Solution

The fourth proportional to 248,018.82, 371,787.66 and 98,209.32 is: 147,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,018.82 : 371,787.66 = 98,209.32 : x
  2. Step 2: Convert to fraction form
    248,018.82/371,787.66 = 98,209.32/x
  3. Step 3: Cross multiply
    248,018.82x = 371,787.66 × 98,209.32
  4. Step 4: Simplify right side
    248,018.82x = 36,513,013,272.99
  5. Step 5: Solve for x
    x = 36,513,013,272.99/248,018.82
  6. Step 6: Final answer
    x = 147,218.72

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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.