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Finding the Fourth Proportional to 70,016.76, 105,071.85 and 36,313.85

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Solution

The fourth proportional to 70,016.76, 105,071.85 and 36,313.85 is: 54,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,016.76 : 105,071.85 = 36,313.85 : x
  2. Step 2: Convert to fraction form
    70,016.76/105,071.85 = 36,313.85/x
  3. Step 3: Cross multiply
    70,016.76x = 105,071.85 × 36,313.85
  4. Step 4: Simplify right side
    70,016.76x = 3,815,563,662.80
  5. Step 5: Solve for x
    x = 3,815,563,662.80/70,016.76
  6. Step 6: Final answer
    x = 54,495.00

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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.