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Finding the Fourth Proportional to 101,242.47, 139,716.09 and 58,801.01

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Solution

The fourth proportional to 101,242.47, 139,716.09 and 58,801.01 is: 81,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,242.47 : 139,716.09 = 58,801.01 : x
  2. Step 2: Convert to fraction form
    101,242.47/139,716.09 = 58,801.01/x
  3. Step 3: Cross multiply
    101,242.47x = 139,716.09 × 58,801.01
  4. Step 4: Simplify right side
    101,242.47x = 8,215,446,506.67
  5. Step 5: Solve for x
    x = 8,215,446,506.67/101,242.47
  6. Step 6: Final answer
    x = 81,146.24

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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.