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Finding the Fourth Proportional to 348,002.20, 521,347.20 and 178,947.10

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Solution

The fourth proportional to 348,002.20, 521,347.20 and 178,947.10 is: 268,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,002.20 : 521,347.20 = 178,947.10 : x
  2. Step 2: Convert to fraction form
    348,002.20/521,347.20 = 178,947.10/x
  3. Step 3: Cross multiply
    348,002.20x = 521,347.20 × 178,947.10
  4. Step 4: Simplify right side
    348,002.20x = 93,293,569,533.12
  5. Step 5: Solve for x
    x = 93,293,569,533.12/348,002.20
  6. Step 6: Final answer
    x = 268,083.28

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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.