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Finding the Fourth Proportional to 243,844.63, 365,691.03 and 86,036.11

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Solution

The fourth proportional to 243,844.63, 365,691.03 and 86,036.11 is: 129,027.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,844.63 : 365,691.03 = 86,036.11 : x
  2. Step 2: Convert to fraction form
    243,844.63/365,691.03 = 86,036.11/x
  3. Step 3: Cross multiply
    243,844.63x = 365,691.03 × 86,036.11
  4. Step 4: Simplify right side
    243,844.63x = 31,462,633,683.09
  5. Step 5: Solve for x
    x = 31,462,633,683.09/243,844.63
  6. Step 6: Final answer
    x = 129,027.38

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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.