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Finding the Fourth Proportional to 173,419.25, 260,149.71 and 61,076.25

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Solution

The fourth proportional to 173,419.25, 260,149.71 and 61,076.25 is: 91,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,419.25 : 260,149.71 = 61,076.25 : x
  2. Step 2: Convert to fraction form
    173,419.25/260,149.71 = 61,076.25/x
  3. Step 3: Cross multiply
    173,419.25x = 260,149.71 × 61,076.25
  4. Step 4: Simplify right side
    173,419.25x = 15,888,968,725.39
  5. Step 5: Solve for x
    x = 15,888,968,725.39/173,419.25
  6. Step 6: Final answer
    x = 91,621.72

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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.