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Finding the Fourth Proportional to 107,069.61, 147,743.75 and 59,310.81

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Solution

The fourth proportional to 107,069.61, 147,743.75 and 59,310.81 is: 81,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,069.61 : 147,743.75 = 59,310.81 : x
  2. Step 2: Convert to fraction form
    107,069.61/147,743.75 = 59,310.81/x
  3. Step 3: Cross multiply
    107,069.61x = 147,743.75 × 59,310.81
  4. Step 4: Simplify right side
    107,069.61x = 8,762,801,188.38
  5. Step 5: Solve for x
    x = 8,762,801,188.38/107,069.61
  6. Step 6: Final answer
    x = 81,842.09

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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.