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Finding the Fourth Proportional to 436,084.75, 654,127.10 and 136,588.76

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Solution

The fourth proportional to 436,084.75, 654,127.10 and 136,588.76 is: 204,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,084.75 : 654,127.10 = 136,588.76 : x
  2. Step 2: Convert to fraction form
    436,084.75/654,127.10 = 136,588.76/x
  3. Step 3: Cross multiply
    436,084.75x = 654,127.10 × 136,588.76
  4. Step 4: Simplify right side
    436,084.75x = 89,346,409,471.40
  5. Step 5: Solve for x
    x = 89,346,409,471.40/436,084.75
  6. Step 6: Final answer
    x = 204,883.13

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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.