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Finding the Fourth Proportional to 243,932.60, 365,901.63 and 86,050.33

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Solution

The fourth proportional to 243,932.60, 365,901.63 and 86,050.33 is: 129,076.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,932.60 : 365,901.63 = 86,050.33 : x
  2. Step 2: Convert to fraction form
    243,932.60/365,901.63 = 86,050.33/x
  3. Step 3: Cross multiply
    243,932.60x = 365,901.63 × 86,050.33
  4. Step 4: Simplify right side
    243,932.60x = 31,485,956,009.04
  5. Step 5: Solve for x
    x = 31,485,956,009.04/243,932.60
  6. Step 6: Final answer
    x = 129,076.46

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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.