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Finding the Fourth Proportional to 126,329,613.40, 189,494,420.10 and 126,329,613.40

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Solution

The fourth proportional to 126,329,613.40, 189,494,420.10 and 126,329,613.40 is: 189,494,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,329,613.40 : 189,494,420.10 = 126,329,613.40 : x
  2. Step 2: Convert to fraction form
    126,329,613.40/189,494,420.10 = 126,329,613.40/x
  3. Step 3: Cross multiply
    126,329,613.40x = 189,494,420.10 × 126,329,613.40
  4. Step 4: Simplify right side
    126,329,613.40x = 23,938,756,832,690,188
  5. Step 5: Solve for x
    x = 23,938,756,832,690,188/126,329,613.40
  6. Step 6: Final answer
    x = 189,494,420.10

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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.