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Finding the Fourth Proportional to 436,592.57, 654,888.89 and 121,049.49

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Solution

The fourth proportional to 436,592.57, 654,888.89 and 121,049.49 is: 181,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,592.57 : 654,888.89 = 121,049.49 : x
  2. Step 2: Convert to fraction form
    436,592.57/654,888.89 = 121,049.49/x
  3. Step 3: Cross multiply
    436,592.57x = 654,888.89 × 121,049.49
  4. Step 4: Simplify right side
    436,592.57x = 79,273,966,141.17
  5. Step 5: Solve for x
    x = 79,273,966,141.17/436,592.57
  6. Step 6: Final answer
    x = 181,574.24

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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.