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Finding the Fourth Proportional to 73,410.15, 110,604.54 and 66,397.98

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Solution

The fourth proportional to 73,410.15, 110,604.54 and 66,397.98 is: 100,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,410.15 : 110,604.54 = 66,397.98 : x
  2. Step 2: Convert to fraction form
    73,410.15/110,604.54 = 66,397.98/x
  3. Step 3: Cross multiply
    73,410.15x = 110,604.54 × 66,397.98
  4. Step 4: Simplify right side
    73,410.15x = 7,343,918,034.83
  5. Step 5: Solve for x
    x = 7,343,918,034.83/73,410.15
  6. Step 6: Final answer
    x = 100,039.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.