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Finding the Fourth Proportional to 115,407.65, 173,094.15 and 36,511.63

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Solution

The fourth proportional to 115,407.65, 173,094.15 and 36,511.63 is: 54,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,407.65 : 173,094.15 = 36,511.63 : x
  2. Step 2: Convert to fraction form
    115,407.65/173,094.15 = 36,511.63/x
  3. Step 3: Cross multiply
    115,407.65x = 173,094.15 × 36,511.63
  4. Step 4: Simplify right side
    115,407.65x = 6,319,949,559.96
  5. Step 5: Solve for x
    x = 6,319,949,559.96/115,407.65
  6. Step 6: Final answer
    x = 54,761.96

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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.