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Finding the Fourth Proportional to 117,810.96, 176,728.74 and 67,947.36

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Solution

The fourth proportional to 117,810.96, 176,728.74 and 67,947.36 is: 101,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,810.96 : 176,728.74 = 67,947.36 : x
  2. Step 2: Convert to fraction form
    117,810.96/176,728.74 = 67,947.36/x
  3. Step 3: Cross multiply
    117,810.96x = 176,728.74 × 67,947.36
  4. Step 4: Simplify right side
    117,810.96x = 12,008,250,401.59
  5. Step 5: Solve for x
    x = 12,008,250,401.59/117,810.96
  6. Step 6: Final answer
    x = 101,928.13

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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.