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Finding the Fourth Proportional to 107,676, 148,578.84 and 59,931.36

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Solution

The fourth proportional to 107,676, 148,578.84 and 59,931.36 is: 82,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,676 : 148,578.84 = 59,931.36 : x
  2. Step 2: Convert to fraction form
    107,676/148,578.84 = 59,931.36/x
  3. Step 3: Cross multiply
    107,676x = 148,578.84 × 59,931.36
  4. Step 4: Simplify right side
    107,676x = 8,904,531,948.42
  5. Step 5: Solve for x
    x = 8,904,531,948.42/107,676
  6. Step 6: Final answer
    x = 82,697.46

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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.