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Finding the Fourth Proportional to 188,575.68, 260,218.98 and 111,039.06

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Solution

The fourth proportional to 188,575.68, 260,218.98 and 111,039.06 is: 153,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,575.68 : 260,218.98 = 111,039.06 : x
  2. Step 2: Convert to fraction form
    188,575.68/260,218.98 = 111,039.06/x
  3. Step 3: Cross multiply
    188,575.68x = 260,218.98 × 111,039.06
  4. Step 4: Simplify right side
    188,575.68x = 28,894,470,933.36
  5. Step 5: Solve for x
    x = 28,894,470,933.36/188,575.68
  6. Step 6: Final answer
    x = 153,224.80

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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.