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Finding the Fourth Proportional to 513,651.53, 770,511.11 and 134,581.55

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Solution

The fourth proportional to 513,651.53, 770,511.11 and 134,581.55 is: 201,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,651.53 : 770,511.11 = 134,581.55 : x
  2. Step 2: Convert to fraction form
    513,651.53/770,511.11 = 134,581.55/x
  3. Step 3: Cross multiply
    513,651.53x = 770,511.11 × 134,581.55
  4. Step 4: Simplify right side
    513,651.53x = 103,696,579,663.19
  5. Step 5: Solve for x
    x = 103,696,579,663.19/513,651.53
  6. Step 6: Final answer
    x = 201,881.19

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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.