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Finding the Fourth Proportional to 191,057,563.20, 286,586,344.80 and 191,057,563.20

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Solution

The fourth proportional to 191,057,563.20, 286,586,344.80 and 191,057,563.20 is: 286,586,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,057,563.20 : 286,586,344.80 = 191,057,563.20 : x
  2. Step 2: Convert to fraction form
    191,057,563.20/286,586,344.80 = 191,057,563.20/x
  3. Step 3: Cross multiply
    191,057,563.20x = 286,586,344.80 × 191,057,563.20
  4. Step 4: Simplify right side
    191,057,563.20x = 54,754,488,683,882,992
  5. Step 5: Solve for x
    x = 54,754,488,683,882,992/191,057,563.20
  6. Step 6: Final answer
    x = 286,586,344.80

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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.