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Finding the Fourth Proportional to 72,414,151.80, 108,621,227.70 and 26,970,041.40

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Solution

The fourth proportional to 72,414,151.80, 108,621,227.70 and 26,970,041.40 is: 40,455,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,151.80 : 108,621,227.70 = 26,970,041.40 : x
  2. Step 2: Convert to fraction form
    72,414,151.80/108,621,227.70 = 26,970,041.40/x
  3. Step 3: Cross multiply
    72,414,151.80x = 108,621,227.70 × 26,970,041.40
  4. Step 4: Simplify right side
    72,414,151.80x = 2,929,519,007,987,826.50
  5. Step 5: Solve for x
    x = 2,929,519,007,987,826.50/72,414,151.80
  6. Step 6: Final answer
    x = 40,455,062.10

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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.