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Finding the Fourth Proportional to 436,081.93, 654,122.89 and 136,585.95

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Solution

The fourth proportional to 436,081.93, 654,122.89 and 136,585.95 is: 204,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,081.93 : 654,122.89 = 136,585.95 : x
  2. Step 2: Convert to fraction form
    436,081.93/654,122.89 = 136,585.95/x
  3. Step 3: Cross multiply
    436,081.93x = 654,122.89 × 136,585.95
  4. Step 4: Simplify right side
    436,081.93x = 89,343,994,065.17
  5. Step 5: Solve for x
    x = 89,343,994,065.17/436,081.93
  6. Step 6: Final answer
    x = 204,878.92

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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.