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Finding the Fourth Proportional to 81,596.86, 112,614.87 and 45,788.98

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Solution

The fourth proportional to 81,596.86, 112,614.87 and 45,788.98 is: 63,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,596.86 : 112,614.87 = 45,788.98 : x
  2. Step 2: Convert to fraction form
    81,596.86/112,614.87 = 45,788.98/x
  3. Step 3: Cross multiply
    81,596.86x = 112,614.87 × 45,788.98
  4. Step 4: Simplify right side
    81,596.86x = 5,156,520,030.13
  5. Step 5: Solve for x
    x = 5,156,520,030.13/81,596.86
  6. Step 6: Final answer
    x = 63,195.08

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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.