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Finding the Fourth Proportional to 67,081,094.80, 100,409,065.80 and 47,949,218.80

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Solution

The fourth proportional to 67,081,094.80, 100,409,065.80 and 47,949,218.80 is: 71,771,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,081,094.80 : 100,409,065.80 = 47,949,218.80 : x
  2. Step 2: Convert to fraction form
    67,081,094.80/100,409,065.80 = 47,949,218.80/x
  3. Step 3: Cross multiply
    67,081,094.80x = 100,409,065.80 × 47,949,218.80
  4. Step 4: Simplify right side
    67,081,094.80x = 4,814,536,265,547,797
  5. Step 5: Solve for x
    x = 4,814,536,265,547,797/67,081,094.80
  6. Step 6: Final answer
    x = 71,771,879.69

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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.