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Finding the Fourth Proportional to 101,795.74, 140,478.48 and 56,474.62

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Solution

The fourth proportional to 101,795.74, 140,478.48 and 56,474.62 is: 77,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,795.74 : 140,478.48 = 56,474.62 : x
  2. Step 2: Convert to fraction form
    101,795.74/140,478.48 = 56,474.62/x
  3. Step 3: Cross multiply
    101,795.74x = 140,478.48 × 56,474.62
  4. Step 4: Simplify right side
    101,795.74x = 7,933,468,776.18
  5. Step 5: Solve for x
    x = 7,933,468,776.18/101,795.74
  6. Step 6: Final answer
    x = 77,935.17

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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.