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Finding the Fourth Proportional to 117,112.92, 175,324.86 and 72,596.76

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Solution

The fourth proportional to 117,112.92, 175,324.86 and 72,596.76 is: 108,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.92 : 175,324.86 = 72,596.76 : x
  2. Step 2: Convert to fraction form
    117,112.92/175,324.86 = 72,596.76/x
  3. Step 3: Cross multiply
    117,112.92x = 175,324.86 × 72,596.76
  4. Step 4: Simplify right side
    117,112.92x = 12,728,016,783.45
  5. Step 5: Solve for x
    x = 12,728,016,783.45/117,112.92
  6. Step 6: Final answer
    x = 108,681.58

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1.5x scale

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.