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Finding the Fourth Proportional to 348,568.80, 480,978.86 and 195,601.12

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Solution

The fourth proportional to 348,568.80, 480,978.86 and 195,601.12 is: 269,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,568.80 : 480,978.86 = 195,601.12 : x
  2. Step 2: Convert to fraction form
    348,568.80/480,978.86 = 195,601.12/x
  3. Step 3: Cross multiply
    348,568.80x = 480,978.86 × 195,601.12
  4. Step 4: Simplify right side
    348,568.80x = 94,080,003,712.32
  5. Step 5: Solve for x
    x = 94,080,003,712.32/348,568.80
  6. Step 6: Final answer
    x = 269,903.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.