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Finding the Fourth Proportional to 101,497.46, 140,056.85 and 68,725.11

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Solution

The fourth proportional to 101,497.46, 140,056.85 and 68,725.11 is: 94,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,497.46 : 140,056.85 = 68,725.11 : x
  2. Step 2: Convert to fraction form
    101,497.46/140,056.85 = 68,725.11/x
  3. Step 3: Cross multiply
    101,497.46x = 140,056.85 × 68,725.11
  4. Step 4: Simplify right side
    101,497.46x = 9,625,421,945.13
  5. Step 5: Solve for x
    x = 9,625,421,945.13/101,497.46
  6. Step 6: Final answer
    x = 94,834.12

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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.