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Finding the Fourth Proportional to 143,255,280.71, 214,882,921.07 and 143,255,280.71

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Solution

The fourth proportional to 143,255,280.71, 214,882,921.07 and 143,255,280.71 is: 214,882,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,255,280.71 : 214,882,921.07 = 143,255,280.71 : x
  2. Step 2: Convert to fraction form
    143,255,280.71/214,882,921.07 = 143,255,280.71/x
  3. Step 3: Cross multiply
    143,255,280.71x = 214,882,921.07 × 143,255,280.71
  4. Step 4: Simplify right side
    143,255,280.71x = 30,783,113,178,025,764
  5. Step 5: Solve for x
    x = 30,783,113,178,025,764/143,255,280.71
  6. Step 6: Final answer
    x = 214,882,921.07

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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.