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Finding the Fourth Proportional to 59,697,721.20, 89,524,463.40 and 19,309,522.80

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Solution

The fourth proportional to 59,697,721.20, 89,524,463.40 and 19,309,522.80 is: 28,957,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,697,721.20 : 89,524,463.40 = 19,309,522.80 : x
  2. Step 2: Convert to fraction form
    59,697,721.20/89,524,463.40 = 19,309,522.80/x
  3. Step 3: Cross multiply
    59,697,721.20x = 89,524,463.40 × 19,309,522.80
  4. Step 4: Simplify right side
    59,697,721.20x = 1,728,674,667,180,065.75
  5. Step 5: Solve for x
    x = 1,728,674,667,180,065.75/59,697,721.20
  6. Step 6: Final answer
    x = 28,957,129.89

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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.