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Finding the Fourth Proportional to 251,008.88, 346,410.78 and 155,534.18

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Solution

The fourth proportional to 251,008.88, 346,410.78 and 155,534.18 is: 214,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,008.88 : 346,410.78 = 155,534.18 : x
  2. Step 2: Convert to fraction form
    251,008.88/346,410.78 = 155,534.18/x
  3. Step 3: Cross multiply
    251,008.88x = 346,410.78 × 155,534.18
  4. Step 4: Simplify right side
    251,008.88x = 53,878,714,295.15
  5. Step 5: Solve for x
    x = 53,878,714,295.15/251,008.88
  6. Step 6: Final answer
    x = 214,648.64

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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.