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Finding the Fourth Proportional to 148,551.87, 205,027.77 and 88,155.79

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Solution

The fourth proportional to 148,551.87, 205,027.77 and 88,155.79 is: 121,670.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,551.87 : 205,027.77 = 88,155.79 : x
  2. Step 2: Convert to fraction form
    148,551.87/205,027.77 = 88,155.79/x
  3. Step 3: Cross multiply
    148,551.87x = 205,027.77 × 88,155.79
  4. Step 4: Simplify right side
    148,551.87x = 18,074,385,036.29
  5. Step 5: Solve for x
    x = 18,074,385,036.29/148,551.87
  6. Step 6: Final answer
    x = 121,670.53

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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.