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Finding the Fourth Proportional to 207,067.48, 310,592.32 and 64,909.57

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Solution

The fourth proportional to 207,067.48, 310,592.32 and 64,909.57 is: 97,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,067.48 : 310,592.32 = 64,909.57 : x
  2. Step 2: Convert to fraction form
    207,067.48/310,592.32 = 64,909.57/x
  3. Step 3: Cross multiply
    207,067.48x = 310,592.32 × 64,909.57
  4. Step 4: Simplify right side
    207,067.48x = 20,160,413,945.22
  5. Step 5: Solve for x
    x = 20,160,413,945.22/207,067.48
  6. Step 6: Final answer
    x = 97,361.57

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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.