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Finding the Fourth Proportional to 348,359.68, 522,772.08 and 126,743.68

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Solution

The fourth proportional to 348,359.68, 522,772.08 and 126,743.68 is: 190,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,359.68 : 522,772.08 = 126,743.68 : x
  2. Step 2: Convert to fraction form
    348,359.68/522,772.08 = 126,743.68/x
  3. Step 3: Cross multiply
    348,359.68x = 522,772.08 × 126,743.68
  4. Step 4: Simplify right side
    348,359.68x = 66,258,057,220.45
  5. Step 5: Solve for x
    x = 66,258,057,220.45/348,359.68
  6. Step 6: Final answer
    x = 190,200.13

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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.