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Finding the Fourth Proportional to 72,914,363.60, 109,413,535.80 and 27,508,744.40

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Solution

The fourth proportional to 72,914,363.60, 109,413,535.80 and 27,508,744.40 is: 41,278,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914,363.60 : 109,413,535.80 = 27,508,744.40 : x
  2. Step 2: Convert to fraction form
    72,914,363.60/109,413,535.80 = 27,508,744.40/x
  3. Step 3: Cross multiply
    72,914,363.60x = 109,413,535.80 × 27,508,744.40
  4. Step 4: Simplify right side
    72,914,363.60x = 3,009,828,990,222,449.50
  5. Step 5: Solve for x
    x = 3,009,828,990,222,449.50/72,914,363.60
  6. Step 6: Final answer
    x = 41,278,958.52

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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.