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Finding the Fourth Proportional to 118,987.92, 178,656.84 and 49,003.92

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Solution

The fourth proportional to 118,987.92, 178,656.84 and 49,003.92 is: 73,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,987.92 : 178,656.84 = 49,003.92 : x
  2. Step 2: Convert to fraction form
    118,987.92/178,656.84 = 49,003.92/x
  3. Step 3: Cross multiply
    118,987.92x = 178,656.84 × 49,003.92
  4. Step 4: Simplify right side
    118,987.92x = 8,754,885,494.81
  5. Step 5: Solve for x
    x = 8,754,885,494.81/118,987.92
  6. Step 6: Final answer
    x = 73,577.94

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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.