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Finding the Fourth Proportional to 201,620,408.10, 302,430,612.15 and 201,620,408.10

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Solution

The fourth proportional to 201,620,408.10, 302,430,612.15 and 201,620,408.10 is: 302,430,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,620,408.10 : 302,430,612.15 = 201,620,408.10 : x
  2. Step 2: Convert to fraction form
    201,620,408.10/302,430,612.15 = 201,620,408.10/x
  3. Step 3: Cross multiply
    201,620,408.10x = 302,430,612.15 × 201,620,408.10
  4. Step 4: Simplify right side
    201,620,408.10x = 60,976,183,443,615,808
  5. Step 5: Solve for x
    x = 60,976,183,443,615,808/201,620,408.10
  6. Step 6: Final answer
    x = 302,430,612.15

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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.