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Finding the Fourth Proportional to 142,992,002.80, 214,062,851.40 and 142,992,002.80

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Solution

The fourth proportional to 142,992,002.80, 214,062,851.40 and 142,992,002.80 is: 214,062,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992,002.80 : 214,062,851.40 = 142,992,002.80 : x
  2. Step 2: Convert to fraction form
    142,992,002.80/214,062,851.40 = 142,992,002.80/x
  3. Step 3: Cross multiply
    142,992,002.80x = 214,062,851.40 × 142,992,002.80
  4. Step 4: Simplify right side
    142,992,002.80x = 30,609,275,846,764,788
  5. Step 5: Solve for x
    x = 30,609,275,846,764,788/142,992,002.80
  6. Step 6: Final answer
    x = 214,062,851.40

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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.