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Finding the Fourth Proportional to 124,093.88, 171,352.98 and 115,088.92

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Solution

The fourth proportional to 124,093.88, 171,352.98 and 115,088.92 is: 158,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,093.88 : 171,352.98 = 115,088.92 : x
  2. Step 2: Convert to fraction form
    124,093.88/171,352.98 = 115,088.92/x
  3. Step 3: Cross multiply
    124,093.88x = 171,352.98 × 115,088.92
  4. Step 4: Simplify right side
    124,093.88x = 19,720,829,406.98
  5. Step 5: Solve for x
    x = 19,720,829,406.98/124,093.88
  6. Step 6: Final answer
    x = 158,918.63

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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.