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Finding the Fourth Proportional to 122,788.80, 184,239.10 and 59,574.80

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Solution

The fourth proportional to 122,788.80, 184,239.10 and 59,574.80 is: 89,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,788.80 : 184,239.10 = 59,574.80 : x
  2. Step 2: Convert to fraction form
    122,788.80/184,239.10 = 59,574.80/x
  3. Step 3: Cross multiply
    122,788.80x = 184,239.10 × 59,574.80
  4. Step 4: Simplify right side
    122,788.80x = 10,976,007,534.68
  5. Step 5: Solve for x
    x = 10,976,007,534.68/122,788.80
  6. Step 6: Final answer
    x = 89,389.32

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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.