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Finding the Fourth Proportional to 220,671.81, 304,561.76 and 134,649.59

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Solution

The fourth proportional to 220,671.81, 304,561.76 and 134,649.59 is: 185,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,671.81 : 304,561.76 = 134,649.59 : x
  2. Step 2: Convert to fraction form
    220,671.81/304,561.76 = 134,649.59/x
  3. Step 3: Cross multiply
    220,671.81x = 304,561.76 × 134,649.59
  4. Step 4: Simplify right side
    220,671.81x = 41,009,113,917.62
  5. Step 5: Solve for x
    x = 41,009,113,917.62/220,671.81
  6. Step 6: Final answer
    x = 185,837.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.