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Finding the Fourth Proportional to 136,767.86, 188,590.83 and 88,932.50

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Solution

The fourth proportional to 136,767.86, 188,590.83 and 88,932.50 is: 122,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,767.86 : 188,590.83 = 88,932.50 : x
  2. Step 2: Convert to fraction form
    136,767.86/188,590.83 = 88,932.50/x
  3. Step 3: Cross multiply
    136,767.86x = 188,590.83 × 88,932.50
  4. Step 4: Simplify right side
    136,767.86x = 16,771,853,988.98
  5. Step 5: Solve for x
    x = 16,771,853,988.98/136,767.86
  6. Step 6: Final answer
    x = 122,630.08

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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.