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Finding the Fourth Proportional to 70,382.36, 97,127.52 and 38,551.88

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Solution

The fourth proportional to 70,382.36, 97,127.52 and 38,551.88 is: 53,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.36 : 97,127.52 = 38,551.88 : x
  2. Step 2: Convert to fraction form
    70,382.36/97,127.52 = 38,551.88/x
  3. Step 3: Cross multiply
    70,382.36x = 97,127.52 × 38,551.88
  4. Step 4: Simplify right side
    70,382.36x = 3,744,448,495.74
  5. Step 5: Solve for x
    x = 3,744,448,495.74/70,382.36
  6. Step 6: Final answer
    x = 53,201.52

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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.