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Finding the Fourth Proportional to 75,100.81, 103,639.22 and 46,806.50

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Solution

The fourth proportional to 75,100.81, 103,639.22 and 46,806.50 is: 64,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,100.81 : 103,639.22 = 46,806.50 : x
  2. Step 2: Convert to fraction form
    75,100.81/103,639.22 = 46,806.50/x
  3. Step 3: Cross multiply
    75,100.81x = 103,639.22 × 46,806.50
  4. Step 4: Simplify right side
    75,100.81x = 4,850,989,150.93
  5. Step 5: Solve for x
    x = 4,850,989,150.93/75,100.81
  6. Step 6: Final answer
    x = 64,593.03

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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.