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Finding the Fourth Proportional to 68,176, 94,091.52 and 38,373.76

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Solution

The fourth proportional to 68,176, 94,091.52 and 38,373.76 is: 52,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,176 : 94,091.52 = 38,373.76 : x
  2. Step 2: Convert to fraction form
    68,176/94,091.52 = 38,373.76/x
  3. Step 3: Cross multiply
    68,176x = 94,091.52 × 38,373.76
  4. Step 4: Simplify right side
    68,176x = 3,610,645,406.52
  5. Step 5: Solve for x
    x = 3,610,645,406.52/68,176
  6. Step 6: Final answer
    x = 52,960.65

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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.