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Finding the Fourth Proportional to 115,811.70, 173,730.51 and 36,907.98

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Solution

The fourth proportional to 115,811.70, 173,730.51 and 36,907.98 is: 55,366.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,811.70 : 173,730.51 = 36,907.98 : x
  2. Step 2: Convert to fraction form
    115,811.70/173,730.51 = 36,907.98/x
  3. Step 3: Cross multiply
    115,811.70x = 173,730.51 × 36,907.98
  4. Step 4: Simplify right side
    115,811.70x = 6,412,042,188.47
  5. Step 5: Solve for x
    x = 6,412,042,188.47/115,811.70
  6. Step 6: Final answer
    x = 55,366.10

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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.