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Finding the Fourth Proportional to 188,036.57, 281,856.74 and 61,643.86

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Solution

The fourth proportional to 188,036.57, 281,856.74 and 61,643.86 is: 92,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,036.57 : 281,856.74 = 61,643.86 : x
  2. Step 2: Convert to fraction form
    188,036.57/281,856.74 = 61,643.86/x
  3. Step 3: Cross multiply
    188,036.57x = 281,856.74 × 61,643.86
  4. Step 4: Simplify right side
    188,036.57x = 17,374,736,407.76
  5. Step 5: Solve for x
    x = 17,374,736,407.76/188,036.57
  6. Step 6: Final answer
    x = 92,400.84

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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.