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Finding the Fourth Proportional to 174,649.16, 261,754.53 and 74,691.77

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Solution

The fourth proportional to 174,649.16, 261,754.53 and 74,691.77 is: 111,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,649.16 : 261,754.53 = 74,691.77 : x
  2. Step 2: Convert to fraction form
    174,649.16/261,754.53 = 74,691.77/x
  3. Step 3: Cross multiply
    174,649.16x = 261,754.53 × 74,691.77
  4. Step 4: Simplify right side
    174,649.16x = 19,550,909,151.22
  5. Step 5: Solve for x
    x = 19,550,909,151.22/174,649.16
  6. Step 6: Final answer
    x = 111,943.91

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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.