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Finding the Fourth Proportional to 165,371.60, 248,089.80 and 70,601.60

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Solution

The fourth proportional to 165,371.60, 248,089.80 and 70,601.60 is: 105,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,371.60 : 248,089.80 = 70,601.60 : x
  2. Step 2: Convert to fraction form
    165,371.60/248,089.80 = 70,601.60/x
  3. Step 3: Cross multiply
    165,371.60x = 248,089.80 × 70,601.60
  4. Step 4: Simplify right side
    165,371.60x = 17,515,536,823.68
  5. Step 5: Solve for x
    x = 17,515,536,823.68/165,371.60
  6. Step 6: Final answer
    x = 105,916.23

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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.