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Finding the Fourth Proportional to 262,108.80, 393,076.80 and 95,875.20

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Solution

The fourth proportional to 262,108.80, 393,076.80 and 95,875.20 is: 143,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,108.80 : 393,076.80 = 95,875.20 : x
  2. Step 2: Convert to fraction form
    262,108.80/393,076.80 = 95,875.20/x
  3. Step 3: Cross multiply
    262,108.80x = 393,076.80 × 95,875.20
  4. Step 4: Simplify right side
    262,108.80x = 37,686,316,815.36
  5. Step 5: Solve for x
    x = 37,686,316,815.36/262,108.80
  6. Step 6: Final answer
    x = 143,781.20

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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.