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Finding the Fourth Proportional to 115,597, 173,395.50 and 28,045

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Solution

The fourth proportional to 115,597, 173,395.50 and 28,045 is: 42,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,597 : 173,395.50 = 28,045 : x
  2. Step 2: Convert to fraction form
    115,597/173,395.50 = 28,045/x
  3. Step 3: Cross multiply
    115,597x = 173,395.50 × 28,045
  4. Step 4: Simplify right side
    115,597x = 4,862,876,797.50
  5. Step 5: Solve for x
    x = 4,862,876,797.50/115,597
  6. Step 6: Final answer
    x = 42,067.50

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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.