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Finding the Fourth Proportional to 101,370.54, 139,889.18 and 56,050.43

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Solution

The fourth proportional to 101,370.54, 139,889.18 and 56,050.43 is: 77,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,370.54 : 139,889.18 = 56,050.43 : x
  2. Step 2: Convert to fraction form
    101,370.54/139,889.18 = 56,050.43/x
  3. Step 3: Cross multiply
    101,370.54x = 139,889.18 × 56,050.43
  4. Step 4: Simplify right side
    101,370.54x = 7,840,848,603.62
  5. Step 5: Solve for x
    x = 7,840,848,603.62/101,370.54
  6. Step 6: Final answer
    x = 77,348.40

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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.