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Finding the Fourth Proportional to 104,803.71, 157,221.30 and 48,649.59

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Solution

The fourth proportional to 104,803.71, 157,221.30 and 48,649.59 is: 72,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,803.71 : 157,221.30 = 48,649.59 : x
  2. Step 2: Convert to fraction form
    104,803.71/157,221.30 = 48,649.59/x
  3. Step 3: Cross multiply
    104,803.71x = 157,221.30 × 48,649.59
  4. Step 4: Simplify right side
    104,803.71x = 7,648,751,784.27
  5. Step 5: Solve for x
    x = 7,648,751,784.27/104,803.71
  6. Step 6: Final answer
    x = 72,981.69

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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.