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Finding the Fourth Proportional to 100,493.76, 150,743.52 and 56,095.68

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Solution

The fourth proportional to 100,493.76, 150,743.52 and 56,095.68 is: 84,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,493.76 : 150,743.52 = 56,095.68 : x
  2. Step 2: Convert to fraction form
    100,493.76/150,743.52 = 56,095.68/x
  3. Step 3: Cross multiply
    100,493.76x = 150,743.52 × 56,095.68
  4. Step 4: Simplify right side
    100,493.76x = 8,456,060,259.99
  5. Step 5: Solve for x
    x = 8,456,060,259.99/100,493.76
  6. Step 6: Final answer
    x = 84,145.13

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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.