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Finding the Fourth Proportional to 70,025.76, 104,934.90 and 57,633.84

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Solution

The fourth proportional to 70,025.76, 104,934.90 and 57,633.84 is: 86,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,025.76 : 104,934.90 = 57,633.84 : x
  2. Step 2: Convert to fraction form
    70,025.76/104,934.90 = 57,633.84/x
  3. Step 3: Cross multiply
    70,025.76x = 104,934.90 × 57,633.84
  4. Step 4: Simplify right side
    70,025.76x = 6,047,801,237.02
  5. Step 5: Solve for x
    x = 6,047,801,237.02/70,025.76
  6. Step 6: Final answer
    x = 86,365.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.