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Finding the Fourth Proportional to 477,553.57, 716,083.80 and 140,550.43

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Solution

The fourth proportional to 477,553.57, 716,083.80 and 140,550.43 is: 210,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,553.57 : 716,083.80 = 140,550.43 : x
  2. Step 2: Convert to fraction form
    477,553.57/716,083.80 = 140,550.43/x
  3. Step 3: Cross multiply
    477,553.57x = 716,083.80 × 140,550.43
  4. Step 4: Simplify right side
    477,553.57x = 100,645,886,006.03
  5. Step 5: Solve for x
    x = 100,645,886,006.03/477,553.57
  6. Step 6: Final answer
    x = 210,753.08

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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.