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Finding the Fourth Proportional to 104,060.57, 143,603.91 and 56,313.90

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Solution

The fourth proportional to 104,060.57, 143,603.91 and 56,313.90 is: 77,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,060.57 : 143,603.91 = 56,313.90 : x
  2. Step 2: Convert to fraction form
    104,060.57/143,603.91 = 56,313.90/x
  3. Step 3: Cross multiply
    104,060.57x = 143,603.91 × 56,313.90
  4. Step 4: Simplify right side
    104,060.57x = 8,086,896,227.35
  5. Step 5: Solve for x
    x = 8,086,896,227.35/104,060.57
  6. Step 6: Final answer
    x = 77,713.36

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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.