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Finding the Fourth Proportional to 142,357,882.20, 213,536,823.30 and 142,357,882.20

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Solution

The fourth proportional to 142,357,882.20, 213,536,823.30 and 142,357,882.20 is: 213,536,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,357,882.20 : 213,536,823.30 = 142,357,882.20 : x
  2. Step 2: Convert to fraction form
    142,357,882.20/213,536,823.30 = 142,357,882.20/x
  3. Step 3: Cross multiply
    142,357,882.20x = 213,536,823.30 × 142,357,882.20
  4. Step 4: Simplify right side
    142,357,882.20x = 30,398,649,936,703,616
  5. Step 5: Solve for x
    x = 30,398,649,936,703,616/142,357,882.20
  6. Step 6: Final answer
    x = 213,536,823.30

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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.