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Finding the Fourth Proportional to 73,891.29, 101,970.09 and 42,060.19

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Solution

The fourth proportional to 73,891.29, 101,970.09 and 42,060.19 is: 58,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,891.29 : 101,970.09 = 42,060.19 : x
  2. Step 2: Convert to fraction form
    73,891.29/101,970.09 = 42,060.19/x
  3. Step 3: Cross multiply
    73,891.29x = 101,970.09 × 42,060.19
  4. Step 4: Simplify right side
    73,891.29x = 4,288,880,849.87
  5. Step 5: Solve for x
    x = 4,288,880,849.87/73,891.29
  6. Step 6: Final answer
    x = 58,043.12

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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.