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Finding the Fourth Proportional to 124,118.47, 171,296.13 and 73,147.06

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Solution

The fourth proportional to 124,118.47, 171,296.13 and 73,147.06 is: 100,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,118.47 : 171,296.13 = 73,147.06 : x
  2. Step 2: Convert to fraction form
    124,118.47/171,296.13 = 73,147.06/x
  3. Step 3: Cross multiply
    124,118.47x = 171,296.13 × 73,147.06
  4. Step 4: Simplify right side
    124,118.47x = 12,529,808,298.88
  5. Step 5: Solve for x
    x = 12,529,808,298.88/124,118.47
  6. Step 6: Final answer
    x = 100,950.39

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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.