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Finding the Fourth Proportional to 107,715.60, 148,645.44 and 59,969.88

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Solution

The fourth proportional to 107,715.60, 148,645.44 and 59,969.88 is: 82,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,715.60 : 148,645.44 = 59,969.88 : x
  2. Step 2: Convert to fraction form
    107,715.60/148,645.44 = 59,969.88/x
  3. Step 3: Cross multiply
    107,715.60x = 148,645.44 × 59,969.88
  4. Step 4: Simplify right side
    107,715.60x = 8,914,249,199.35
  5. Step 5: Solve for x
    x = 8,914,249,199.35/107,715.60
  6. Step 6: Final answer
    x = 82,757.27

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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.