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Finding the Fourth Proportional to 67,453.59, 101,160.95 and 20,710.11

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Solution

The fourth proportional to 67,453.59, 101,160.95 and 20,710.11 is: 31,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,453.59 : 101,160.95 = 20,710.11 : x
  2. Step 2: Convert to fraction form
    67,453.59/101,160.95 = 20,710.11/x
  3. Step 3: Cross multiply
    67,453.59x = 101,160.95 × 20,710.11
  4. Step 4: Simplify right side
    67,453.59x = 2,095,054,298.65
  5. Step 5: Solve for x
    x = 2,095,054,298.65/67,453.59
  6. Step 6: Final answer
    x = 31,059.20

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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.