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Finding the Fourth Proportional to 109,562.49, 151,203.15 and 61,798.41

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Solution

The fourth proportional to 109,562.49, 151,203.15 and 61,798.41 is: 85,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,562.49 : 151,203.15 = 61,798.41 : x
  2. Step 2: Convert to fraction form
    109,562.49/151,203.15 = 61,798.41/x
  3. Step 3: Cross multiply
    109,562.49x = 151,203.15 × 61,798.41
  4. Step 4: Simplify right side
    109,562.49x = 9,344,114,256.99
  5. Step 5: Solve for x
    x = 9,344,114,256.99/109,562.49
  6. Step 6: Final answer
    x = 85,285.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.