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Finding the Fourth Proportional to 148,974.64, 205,628.60 and 88,587.80

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Solution

The fourth proportional to 148,974.64, 205,628.60 and 88,587.80 is: 122,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,974.64 : 205,628.60 = 88,587.80 : x
  2. Step 2: Convert to fraction form
    148,974.64/205,628.60 = 88,587.80/x
  3. Step 3: Cross multiply
    148,974.64x = 205,628.60 × 88,587.80
  4. Step 4: Simplify right side
    148,974.64x = 18,216,185,291.08
  5. Step 5: Solve for x
    x = 18,216,185,291.08/148,974.64
  6. Step 6: Final answer
    x = 122,277.09

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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.