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Finding the Fourth Proportional to 436,322.57, 654,492.05 and 136,796.51

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Solution

The fourth proportional to 436,322.57, 654,492.05 and 136,796.51 is: 205,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,322.57 : 654,492.05 = 136,796.51 : x
  2. Step 2: Convert to fraction form
    436,322.57/654,492.05 = 136,796.51/x
  3. Step 3: Cross multiply
    436,322.57x = 654,492.05 × 136,796.51
  4. Step 4: Simplify right side
    436,322.57x = 89,532,229,727.98
  5. Step 5: Solve for x
    x = 89,532,229,727.98/436,322.57
  6. Step 6: Final answer
    x = 205,197.34

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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.