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Finding the Fourth Proportional to 74,657.87, 111,886.55 and 36,649.11

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Solution

The fourth proportional to 74,657.87, 111,886.55 and 36,649.11 is: 54,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,657.87 : 111,886.55 = 36,649.11 : x
  2. Step 2: Convert to fraction form
    74,657.87/111,886.55 = 36,649.11/x
  3. Step 3: Cross multiply
    74,657.87x = 111,886.55 × 36,649.11
  4. Step 4: Simplify right side
    74,657.87x = 4,100,542,478.47
  5. Step 5: Solve for x
    x = 4,100,542,478.47/74,657.87
  6. Step 6: Final answer
    x = 54,924.45

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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.