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Finding the Fourth Proportional to 123,800.81, 185,741.07 and 56,356.97

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Solution

The fourth proportional to 123,800.81, 185,741.07 and 56,356.97 is: 84,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,800.81 : 185,741.07 = 56,356.97 : x
  2. Step 2: Convert to fraction form
    123,800.81/185,741.07 = 56,356.97/x
  3. Step 3: Cross multiply
    123,800.81x = 185,741.07 × 56,356.97
  4. Step 4: Simplify right side
    123,800.81x = 10,467,803,627.97
  5. Step 5: Solve for x
    x = 10,467,803,627.97/123,800.81
  6. Step 6: Final answer
    x = 84,553.60

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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.