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Finding the Fourth Proportional to 107,069.69, 147,750 and 59,320.19

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Solution

The fourth proportional to 107,069.69, 147,750 and 59,320.19 is: 81,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,069.69 : 147,750 = 59,320.19 : x
  2. Step 2: Convert to fraction form
    107,069.69/147,750 = 59,320.19/x
  3. Step 3: Cross multiply
    107,069.69x = 147,750 × 59,320.19
  4. Step 4: Simplify right side
    107,069.69x = 8,764,558,072.50
  5. Step 5: Solve for x
    x = 8,764,558,072.50/107,069.69
  6. Step 6: Final answer
    x = 81,858.44

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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.