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Finding the Fourth Proportional to 101,063.48, 151,511.99 and 40,279.86

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Solution

The fourth proportional to 101,063.48, 151,511.99 and 40,279.86 is: 60,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,063.48 : 151,511.99 = 40,279.86 : x
  2. Step 2: Convert to fraction form
    101,063.48/151,511.99 = 40,279.86/x
  3. Step 3: Cross multiply
    101,063.48x = 151,511.99 × 40,279.86
  4. Step 4: Simplify right side
    101,063.48x = 6,102,881,544.12
  5. Step 5: Solve for x
    x = 6,102,881,544.12/101,063.48
  6. Step 6: Final answer
    x = 60,386.62

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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.