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Finding the Fourth Proportional to 148,679.94, 205,085.01 and 88,207.77

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Solution

The fourth proportional to 148,679.94, 205,085.01 and 88,207.77 is: 121,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.94 : 205,085.01 = 88,207.77 : x
  2. Step 2: Convert to fraction form
    148,679.94/205,085.01 = 88,207.77/x
  3. Step 3: Cross multiply
    148,679.94x = 205,085.01 × 88,207.77
  4. Step 4: Simplify right side
    148,679.94x = 18,090,091,392.53
  5. Step 5: Solve for x
    x = 18,090,091,392.53/148,679.94
  6. Step 6: Final answer
    x = 121,671.37

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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.