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Finding the Fourth Proportional to 101,216.70, 151,934.40 and 56,929.95

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Solution

The fourth proportional to 101,216.70, 151,934.40 and 56,929.95 is: 85,456.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,216.70 : 151,934.40 = 56,929.95 : x
  2. Step 2: Convert to fraction form
    101,216.70/151,934.40 = 56,929.95/x
  3. Step 3: Cross multiply
    101,216.70x = 151,934.40 × 56,929.95
  4. Step 4: Simplify right side
    101,216.70x = 8,649,617,795.28
  5. Step 5: Solve for x
    x = 8,649,617,795.28/101,216.70
  6. Step 6: Final answer
    x = 85,456.43

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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.