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Finding the Fourth Proportional to 543,561.60, 815,382.22 and 144,193.52

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Solution

The fourth proportional to 543,561.60, 815,382.22 and 144,193.52 is: 216,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,561.60 : 815,382.22 = 144,193.52 : x
  2. Step 2: Convert to fraction form
    543,561.60/815,382.22 = 144,193.52/x
  3. Step 3: Cross multiply
    543,561.60x = 815,382.22 × 144,193.52
  4. Step 4: Simplify right side
    543,561.60x = 117,572,832,447.21
  5. Step 5: Solve for x
    x = 117,572,832,447.21/543,561.60
  6. Step 6: Final answer
    x = 216,300.84

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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.