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Finding the Fourth Proportional to 73,188.63, 100,987.02 and 40,923.83

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Solution

The fourth proportional to 73,188.63, 100,987.02 and 40,923.83 is: 56,467.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,188.63 : 100,987.02 = 40,923.83 : x
  2. Step 2: Convert to fraction form
    73,188.63/100,987.02 = 40,923.83/x
  3. Step 3: Cross multiply
    73,188.63x = 100,987.02 × 40,923.83
  4. Step 4: Simplify right side
    73,188.63x = 4,132,775,891.15
  5. Step 5: Solve for x
    x = 4,132,775,891.15/73,188.63
  6. Step 6: Final answer
    x = 56,467.46

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1.5x scale

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.