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Finding the Fourth Proportional to 101,039.76, 139,447.44 and 58,032.72

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Solution

The fourth proportional to 101,039.76, 139,447.44 and 58,032.72 is: 80,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,039.76 : 139,447.44 = 58,032.72 : x
  2. Step 2: Convert to fraction form
    101,039.76/139,447.44 = 58,032.72/x
  3. Step 3: Cross multiply
    101,039.76x = 139,447.44 × 58,032.72
  4. Step 4: Simplify right side
    101,039.76x = 8,092,514,240.24
  5. Step 5: Solve for x
    x = 8,092,514,240.24/101,039.76
  6. Step 6: Final answer
    x = 80,092.37

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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.