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Finding the Fourth Proportional to 436,257, 654,393.72 and 136,730.96

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Solution

The fourth proportional to 436,257, 654,393.72 and 136,730.96 is: 205,099.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,257 : 654,393.72 = 136,730.96 : x
  2. Step 2: Convert to fraction form
    436,257/654,393.72 = 136,730.96/x
  3. Step 3: Cross multiply
    436,257x = 654,393.72 × 136,730.96
  4. Step 4: Simplify right side
    436,257x = 89,475,881,553.57
  5. Step 5: Solve for x
    x = 89,475,881,553.57/436,257
  6. Step 6: Final answer
    x = 205,099.02

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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.