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Finding the Fourth Proportional to 158,656.86, 218,956.65 and 104,847.54

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Solution

The fourth proportional to 158,656.86, 218,956.65 and 104,847.54 is: 144,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,656.86 : 218,956.65 = 104,847.54 : x
  2. Step 2: Convert to fraction form
    158,656.86/218,956.65 = 104,847.54/x
  3. Step 3: Cross multiply
    158,656.86x = 218,956.65 × 104,847.54
  4. Step 4: Simplify right side
    158,656.86x = 22,957,066,119.14
  5. Step 5: Solve for x
    x = 22,957,066,119.14/158,656.86
  6. Step 6: Final answer
    x = 144,696.33

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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.