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Finding the Fourth Proportional to 60,582,007.20, 90,873,529.20 and 20,192,491.20

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Solution

The fourth proportional to 60,582,007.20, 90,873,529.20 and 20,192,491.20 is: 30,288,909.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,582,007.20 : 90,873,529.20 = 20,192,491.20 : x
  2. Step 2: Convert to fraction form
    60,582,007.20/90,873,529.20 = 20,192,491.20/x
  3. Step 3: Cross multiply
    60,582,007.20x = 90,873,529.20 × 20,192,491.20
  4. Step 4: Simplify right side
    60,582,007.20x = 1,834,962,938,683,943
  5. Step 5: Solve for x
    x = 1,834,962,938,683,943/60,582,007.20
  6. Step 6: Final answer
    x = 30,288,909.59

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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.