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Finding the Fourth Proportional to 63,021.97, 86,903.44 and 56,674.81

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Solution

The fourth proportional to 63,021.97, 86,903.44 and 56,674.81 is: 78,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.97 : 86,903.44 = 56,674.81 : x
  2. Step 2: Convert to fraction form
    63,021.97/86,903.44 = 56,674.81/x
  3. Step 3: Cross multiply
    63,021.97x = 86,903.44 × 56,674.81
  4. Step 4: Simplify right side
    63,021.97x = 4,925,235,950.35
  5. Step 5: Solve for x
    x = 4,925,235,950.35/63,021.97
  6. Step 6: Final answer
    x = 78,151.09

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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.