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Finding the Fourth Proportional to 70,901.02, 97,843.44 and 39,069.64

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Solution

The fourth proportional to 70,901.02, 97,843.44 and 39,069.64 is: 53,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.02 : 97,843.44 = 39,069.64 : x
  2. Step 2: Convert to fraction form
    70,901.02/97,843.44 = 39,069.64/x
  3. Step 3: Cross multiply
    70,901.02x = 97,843.44 × 39,069.64
  4. Step 4: Simplify right side
    70,901.02x = 3,822,707,977.16
  5. Step 5: Solve for x
    x = 3,822,707,977.16/70,901.02
  6. Step 6: Final answer
    x = 53,916.12

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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.