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Finding the Fourth Proportional to 544,999.17, 817,621.77 and 165,953.80

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Solution

The fourth proportional to 544,999.17, 817,621.77 and 165,953.80 is: 248,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,999.17 : 817,621.77 = 165,953.80 : x
  2. Step 2: Convert to fraction form
    544,999.17/817,621.77 = 165,953.80/x
  3. Step 3: Cross multiply
    544,999.17x = 817,621.77 × 165,953.80
  4. Step 4: Simplify right side
    544,999.17x = 135,687,435,606.12
  5. Step 5: Solve for x
    x = 135,687,435,606.12/544,999.17
  6. Step 6: Final answer
    x = 248,968.15

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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.