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Finding the Fourth Proportional to 348,259.77, 522,622.67 and 126,643.77

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Solution

The fourth proportional to 348,259.77, 522,622.67 and 126,643.77 is: 190,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,259.77 : 522,622.67 = 126,643.77 : x
  2. Step 2: Convert to fraction form
    348,259.77/522,622.67 = 126,643.77/x
  3. Step 3: Cross multiply
    348,259.77x = 522,622.67 × 126,643.77
  4. Step 4: Simplify right side
    348,259.77x = 66,186,904,583.05
  5. Step 5: Solve for x
    x = 66,186,904,583.05/348,259.77
  6. Step 6: Final answer
    x = 190,050.39

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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.