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Finding the Fourth Proportional to 62,906,995.20, 94,360,492.80 and 20,356,723.20

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Solution

The fourth proportional to 62,906,995.20, 94,360,492.80 and 20,356,723.20 is: 30,535,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,906,995.20 : 94,360,492.80 = 20,356,723.20 : x
  2. Step 2: Convert to fraction form
    62,906,995.20/94,360,492.80 = 20,356,723.20/x
  3. Step 3: Cross multiply
    62,906,995.20x = 94,360,492.80 × 20,356,723.20
  4. Step 4: Simplify right side
    62,906,995.20x = 1,920,870,432,945,192.75
  5. Step 5: Solve for x
    x = 1,920,870,432,945,192.75/62,906,995.20
  6. Step 6: Final answer
    x = 30,535,084.80

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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.