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Finding the Fourth Proportional to 70,214.98, 96,898.20 and 38,383.86

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Solution

The fourth proportional to 70,214.98, 96,898.20 and 38,383.86 is: 52,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,214.98 : 96,898.20 = 38,383.86 : x
  2. Step 2: Convert to fraction form
    70,214.98/96,898.20 = 38,383.86/x
  3. Step 3: Cross multiply
    70,214.98x = 96,898.20 × 38,383.86
  4. Step 4: Simplify right side
    70,214.98x = 3,719,326,943.05
  5. Step 5: Solve for x
    x = 3,719,326,943.05/70,214.98
  6. Step 6: Final answer
    x = 52,970.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.