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Finding the Fourth Proportional to 92,687.16, 139,041.56 and 33,550.68

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Solution

The fourth proportional to 92,687.16, 139,041.56 and 33,550.68 is: 50,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,687.16 : 139,041.56 = 33,550.68 : x
  2. Step 2: Convert to fraction form
    92,687.16/139,041.56 = 33,550.68/x
  3. Step 3: Cross multiply
    92,687.16x = 139,041.56 × 33,550.68
  4. Step 4: Simplify right side
    92,687.16x = 4,664,938,718.51
  5. Step 5: Solve for x
    x = 4,664,938,718.51/92,687.16
  6. Step 6: Final answer
    x = 50,329.93

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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.