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Finding the Fourth Proportional to 118,893, 178,213.80 and 43,965.06

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Solution

The fourth proportional to 118,893, 178,213.80 and 43,965.06 is: 65,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,893 : 178,213.80 = 43,965.06 : x
  2. Step 2: Convert to fraction form
    118,893/178,213.80 = 43,965.06/x
  3. Step 3: Cross multiply
    118,893x = 178,213.80 × 43,965.06
  4. Step 4: Simplify right side
    118,893x = 7,835,180,409.83
  5. Step 5: Solve for x
    x = 7,835,180,409.83/118,893
  6. Step 6: Final answer
    x = 65,901.11

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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.