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Finding the Fourth Proportional to 74,688.84, 112,065.84 and 24,775.56

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Solution

The fourth proportional to 74,688.84, 112,065.84 and 24,775.56 is: 37,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,688.84 : 112,065.84 = 24,775.56 : x
  2. Step 2: Convert to fraction form
    74,688.84/112,065.84 = 24,775.56/x
  3. Step 3: Cross multiply
    74,688.84x = 112,065.84 × 24,775.56
  4. Step 4: Simplify right side
    74,688.84x = 2,776,493,942.87
  5. Step 5: Solve for x
    x = 2,776,493,942.87/74,688.84
  6. Step 6: Final answer
    x = 37,174.15

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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.