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Finding the Fourth Proportional to 64,851.43, 97,320.90 and 25,403.62

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Solution

The fourth proportional to 64,851.43, 97,320.90 and 25,403.62 is: 38,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.43 : 97,320.90 = 25,403.62 : x
  2. Step 2: Convert to fraction form
    64,851.43/97,320.90 = 25,403.62/x
  3. Step 3: Cross multiply
    64,851.43x = 97,320.90 × 25,403.62
  4. Step 4: Simplify right side
    64,851.43x = 2,472,303,161.66
  5. Step 5: Solve for x
    x = 2,472,303,161.66/64,851.43
  6. Step 6: Final answer
    x = 38,122.57

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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.