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Finding the Fourth Proportional to 70,861.13, 97,829.03 and 47,020.13

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Solution

The fourth proportional to 70,861.13, 97,829.03 and 47,020.13 is: 64,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.13 : 97,829.03 = 47,020.13 : x
  2. Step 2: Convert to fraction form
    70,861.13/97,829.03 = 47,020.13/x
  3. Step 3: Cross multiply
    70,861.13x = 97,829.03 × 47,020.13
  4. Step 4: Simplify right side
    70,861.13x = 4,599,933,708.37
  5. Step 5: Solve for x
    x = 4,599,933,708.37/70,861.13
  6. Step 6: Final answer
    x = 64,914.77

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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.