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Finding the Fourth Proportional to 101,584.42, 140,187.69 and 56,263.28

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Solution

The fourth proportional to 101,584.42, 140,187.69 and 56,263.28 is: 77,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,584.42 : 140,187.69 = 56,263.28 : x
  2. Step 2: Convert to fraction form
    101,584.42/140,187.69 = 56,263.28/x
  3. Step 3: Cross multiply
    101,584.42x = 140,187.69 × 56,263.28
  4. Step 4: Simplify right side
    101,584.42x = 7,887,419,605.49
  5. Step 5: Solve for x
    x = 7,887,419,605.49/101,584.42
  6. Step 6: Final answer
    x = 77,643.99

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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.