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Finding the Fourth Proportional to 173,480.31, 260,043.21 and 98,442

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Solution

The fourth proportional to 173,480.31, 260,043.21 and 98,442 is: 147,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,480.31 : 260,043.21 = 98,442 : x
  2. Step 2: Convert to fraction form
    173,480.31/260,043.21 = 98,442/x
  3. Step 3: Cross multiply
    173,480.31x = 260,043.21 × 98,442
  4. Step 4: Simplify right side
    173,480.31x = 25,599,173,678.82
  5. Step 5: Solve for x
    x = 25,599,173,678.82/173,480.31
  6. Step 6: Final answer
    x = 147,562.42

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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.