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Finding the Fourth Proportional to 236,337.98, 354,340.90 and 86,558.81

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Solution

The fourth proportional to 236,337.98, 354,340.90 and 86,558.81 is: 129,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,337.98 : 354,340.90 = 86,558.81 : x
  2. Step 2: Convert to fraction form
    236,337.98/354,340.90 = 86,558.81/x
  3. Step 3: Cross multiply
    236,337.98x = 354,340.90 × 86,558.81
  4. Step 4: Simplify right side
    236,337.98x = 30,671,327,311.28
  5. Step 5: Solve for x
    x = 30,671,327,311.28/236,337.98
  6. Step 6: Final answer
    x = 129,777.39

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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.