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Finding the Fourth Proportional to 348,478.84, 522,577.55 and 135,134.42

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Solution

The fourth proportional to 348,478.84, 522,577.55 and 135,134.42 is: 202,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,478.84 : 522,577.55 = 135,134.42 : x
  2. Step 2: Convert to fraction form
    348,478.84/522,577.55 = 135,134.42/x
  3. Step 3: Cross multiply
    348,478.84x = 522,577.55 × 135,134.42
  4. Step 4: Simplify right side
    348,478.84x = 70,618,214,124.27
  5. Step 5: Solve for x
    x = 70,618,214,124.27/348,478.84
  6. Step 6: Final answer
    x = 202,647.06

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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.