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Finding the Fourth Proportional to 158,656.32, 218,929.50 and 94,992.48

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Solution

The fourth proportional to 158,656.32, 218,929.50 and 94,992.48 is: 131,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,656.32 : 218,929.50 = 94,992.48 : x
  2. Step 2: Convert to fraction form
    158,656.32/218,929.50 = 94,992.48/x
  3. Step 3: Cross multiply
    158,656.32x = 218,929.50 × 94,992.48
  4. Step 4: Simplify right side
    158,656.32x = 20,796,656,150.16
  5. Step 5: Solve for x
    x = 20,796,656,150.16/158,656.32
  6. Step 6: Final answer
    x = 131,079.91

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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.