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Finding the Fourth Proportional to 164,635.60, 247,068.60 and 71,208.40

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Solution

The fourth proportional to 164,635.60, 247,068.60 and 71,208.40 is: 106,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,635.60 : 247,068.60 = 71,208.40 : x
  2. Step 2: Convert to fraction form
    164,635.60/247,068.60 = 71,208.40/x
  3. Step 3: Cross multiply
    164,635.60x = 247,068.60 × 71,208.40
  4. Step 4: Simplify right side
    164,635.60x = 17,593,359,696.24
  5. Step 5: Solve for x
    x = 17,593,359,696.24/164,635.60
  6. Step 6: Final answer
    x = 106,862.43

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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.