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Finding the Fourth Proportional to 174,697.40, 262,243.20 and 115,648.40

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Solution

The fourth proportional to 174,697.40, 262,243.20 and 115,648.40 is: 173,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,697.40 : 262,243.20 = 115,648.40 : x
  2. Step 2: Convert to fraction form
    174,697.40/262,243.20 = 115,648.40/x
  3. Step 3: Cross multiply
    174,697.40x = 262,243.20 × 115,648.40
  4. Step 4: Simplify right side
    174,697.40x = 30,328,006,490.88
  5. Step 5: Solve for x
    x = 30,328,006,490.88/174,697.40
  6. Step 6: Final answer
    x = 173,603.08

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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.