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Finding the Fourth Proportional to 103,260.88, 154,947.77 and 40,083.51

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Solution

The fourth proportional to 103,260.88, 154,947.77 and 40,083.51 is: 60,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,260.88 : 154,947.77 = 40,083.51 : x
  2. Step 2: Convert to fraction form
    103,260.88/154,947.77 = 40,083.51/x
  3. Step 3: Cross multiply
    103,260.88x = 154,947.77 × 40,083.51
  4. Step 4: Simplify right side
    103,260.88x = 6,210,851,019.22
  5. Step 5: Solve for x
    x = 6,210,851,019.22/103,260.88
  6. Step 6: Final answer
    x = 60,147.18

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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.