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Finding the Fourth Proportional to 436,070.39, 654,086.95 and 136,544.33

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Solution

The fourth proportional to 436,070.39, 654,086.95 and 136,544.33 is: 204,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,070.39 : 654,086.95 = 136,544.33 : x
  2. Step 2: Convert to fraction form
    436,070.39/654,086.95 = 136,544.33/x
  3. Step 3: Cross multiply
    436,070.39x = 654,086.95 × 136,544.33
  4. Step 4: Simplify right side
    436,070.39x = 89,311,865,643.35
  5. Step 5: Solve for x
    x = 89,311,865,643.35/436,070.39
  6. Step 6: Final answer
    x = 204,810.67

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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.