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Finding the Fourth Proportional to 348,164.88, 522,480.80 and 126,548.88

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Solution

The fourth proportional to 348,164.88, 522,480.80 and 126,548.88 is: 189,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,164.88 : 522,480.80 = 126,548.88 : x
  2. Step 2: Convert to fraction form
    348,164.88/522,480.80 = 126,548.88/x
  3. Step 3: Cross multiply
    348,164.88x = 522,480.80 × 126,548.88
  4. Step 4: Simplify right side
    348,164.88x = 66,119,360,061.50
  5. Step 5: Solve for x
    x = 66,119,360,061.50/348,164.88
  6. Step 6: Final answer
    x = 189,908.18

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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.