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Finding the Fourth Proportional to 201,620,916.10, 302,431,374.15 and 201,620,916.10

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Solution

The fourth proportional to 201,620,916.10, 302,431,374.15 and 201,620,916.10 is: 302,431,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,620,916.10 : 302,431,374.15 = 201,620,916.10 : x
  2. Step 2: Convert to fraction form
    201,620,916.10/302,431,374.15 = 201,620,916.10/x
  3. Step 3: Cross multiply
    201,620,916.10x = 302,431,374.15 × 201,620,916.10
  4. Step 4: Simplify right side
    201,620,916.10x = 60,976,490,713,504,856
  5. Step 5: Solve for x
    x = 60,976,490,713,504,856/201,620,916.10
  6. Step 6: Final answer
    x = 302,431,374.15

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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.