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Finding the Fourth Proportional to 107,838.21, 148,799.21 and 62,507.33

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Solution

The fourth proportional to 107,838.21, 148,799.21 and 62,507.33 is: 86,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838.21 : 148,799.21 = 62,507.33 : x
  2. Step 2: Convert to fraction form
    107,838.21/148,799.21 = 62,507.33/x
  3. Step 3: Cross multiply
    107,838.21x = 148,799.21 × 62,507.33
  4. Step 4: Simplify right side
    107,838.21x = 9,301,041,439.98
  5. Step 5: Solve for x
    x = 9,301,041,439.98/107,838.21
  6. Step 6: Final answer
    x = 86,249.96

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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.