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Finding the Fourth Proportional to 101,179.73, 139,644.51 and 60,349.05

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Solution

The fourth proportional to 101,179.73, 139,644.51 and 60,349.05 is: 83,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,179.73 : 139,644.51 = 60,349.05 : x
  2. Step 2: Convert to fraction form
    101,179.73/139,644.51 = 60,349.05/x
  3. Step 3: Cross multiply
    101,179.73x = 139,644.51 × 60,349.05
  4. Step 4: Simplify right side
    101,179.73x = 8,427,413,289.91
  5. Step 5: Solve for x
    x = 8,427,413,289.91/101,179.73
  6. Step 6: Final answer
    x = 83,291.52

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1.5x scale

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.