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Finding the Fourth Proportional to 75,709.84, 104,483.10 and 43,888.72

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Solution

The fourth proportional to 75,709.84, 104,483.10 and 43,888.72 is: 60,568.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,709.84 : 104,483.10 = 43,888.72 : x
  2. Step 2: Convert to fraction form
    75,709.84/104,483.10 = 43,888.72/x
  3. Step 3: Cross multiply
    75,709.84x = 104,483.10 × 43,888.72
  4. Step 4: Simplify right side
    75,709.84x = 4,585,629,520.63
  5. Step 5: Solve for x
    x = 4,585,629,520.63/75,709.84
  6. Step 6: Final answer
    x = 60,568.47

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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.