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Finding the Fourth Proportional to 70,259.64, 105,368.46 and 38,233.44

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Solution

The fourth proportional to 70,259.64, 105,368.46 and 38,233.44 is: 57,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,259.64 : 105,368.46 = 38,233.44 : x
  2. Step 2: Convert to fraction form
    70,259.64/105,368.46 = 38,233.44/x
  3. Step 3: Cross multiply
    70,259.64x = 105,368.46 × 38,233.44
  4. Step 4: Simplify right side
    70,259.64x = 4,028,598,693.30
  5. Step 5: Solve for x
    x = 4,028,598,693.30/70,259.64
  6. Step 6: Final answer
    x = 57,338.73

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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.