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Finding the Fourth Proportional to 109,208.49, 150,704.35 and 60,810.51

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Solution

The fourth proportional to 109,208.49, 150,704.35 and 60,810.51 is: 83,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,208.49 : 150,704.35 = 60,810.51 : x
  2. Step 2: Convert to fraction form
    109,208.49/150,704.35 = 60,810.51/x
  3. Step 3: Cross multiply
    109,208.49x = 150,704.35 × 60,810.51
  4. Step 4: Simplify right side
    109,208.49x = 9,164,408,382.72
  5. Step 5: Solve for x
    x = 9,164,408,382.72/109,208.49
  6. Step 6: Final answer
    x = 83,916.63

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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.