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Finding the Fourth Proportional to 75,859.92, 104,665.10 and 45,630.11

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Solution

The fourth proportional to 75,859.92, 104,665.10 and 45,630.11 is: 62,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,859.92 : 104,665.10 = 45,630.11 : x
  2. Step 2: Convert to fraction form
    75,859.92/104,665.10 = 45,630.11/x
  3. Step 3: Cross multiply
    75,859.92x = 104,665.10 × 45,630.11
  4. Step 4: Simplify right side
    75,859.92x = 4,775,880,026.16
  5. Step 5: Solve for x
    x = 4,775,880,026.16/75,859.92
  6. Step 6: Final answer
    x = 62,956.57

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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.