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Finding the Fourth Proportional to 107,953, 148,975.39 and 60,209.43

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Solution

The fourth proportional to 107,953, 148,975.39 and 60,209.43 is: 83,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,953 : 148,975.39 = 60,209.43 : x
  2. Step 2: Convert to fraction form
    107,953/148,975.39 = 60,209.43/x
  3. Step 3: Cross multiply
    107,953x = 148,975.39 × 60,209.43
  4. Step 4: Simplify right side
    107,953x = 8,969,723,315.93
  5. Step 5: Solve for x
    x = 8,969,723,315.93/107,953
  6. Step 6: Final answer
    x = 83,089.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.