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Finding the Fourth Proportional to 115,653.06, 173,352.06 and 75,655.44

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Solution

The fourth proportional to 115,653.06, 173,352.06 and 75,655.44 is: 113,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,653.06 : 173,352.06 = 75,655.44 : x
  2. Step 2: Convert to fraction form
    115,653.06/173,352.06 = 75,655.44/x
  3. Step 3: Cross multiply
    115,653.06x = 173,352.06 × 75,655.44
  4. Step 4: Simplify right side
    115,653.06x = 13,115,026,374.21
  5. Step 5: Solve for x
    x = 13,115,026,374.21/115,653.06
  6. Step 6: Final answer
    x = 113,399.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.