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Finding the Fourth Proportional to 101,062.88, 139,473.14 and 58,055.82

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Solution

The fourth proportional to 101,062.88, 139,473.14 and 58,055.82 is: 80,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,062.88 : 139,473.14 = 58,055.82 : x
  2. Step 2: Convert to fraction form
    101,062.88/139,473.14 = 58,055.82/x
  3. Step 3: Cross multiply
    101,062.88x = 139,473.14 × 58,055.82
  4. Step 4: Simplify right side
    101,062.88x = 8,097,227,220.40
  5. Step 5: Solve for x
    x = 8,097,227,220.40/101,062.88
  6. Step 6: Final answer
    x = 80,120.69

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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.