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Finding the Fourth Proportional to 59,190, 81,685.44 and 34,041.12

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Solution

The fourth proportional to 59,190, 81,685.44 and 34,041.12 is: 46,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,190 : 81,685.44 = 34,041.12 : x
  2. Step 2: Convert to fraction form
    59,190/81,685.44 = 34,041.12/x
  3. Step 3: Cross multiply
    59,190x = 81,685.44 × 34,041.12
  4. Step 4: Simplify right side
    59,190x = 2,780,663,865.29
  5. Step 5: Solve for x
    x = 2,780,663,865.29/59,190
  6. Step 6: Final answer
    x = 46,978.61

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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.