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Finding the Fourth Proportional to 101,995.93, 140,754.27 and 56,678.14

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Solution

The fourth proportional to 101,995.93, 140,754.27 and 56,678.14 is: 78,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,995.93 : 140,754.27 = 56,678.14 : x
  2. Step 2: Convert to fraction form
    101,995.93/140,754.27 = 56,678.14/x
  3. Step 3: Cross multiply
    101,995.93x = 140,754.27 × 56,678.14
  4. Step 4: Simplify right side
    101,995.93x = 7,977,690,220.66
  5. Step 5: Solve for x
    x = 7,977,690,220.66/101,995.93
  6. Step 6: Final answer
    x = 78,215.77

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1.5x scale

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.