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Finding the Fourth Proportional to 118,653.80, 177,883.14 and 55,442.66

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Solution

The fourth proportional to 118,653.80, 177,883.14 and 55,442.66 is: 83,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,653.80 : 177,883.14 = 55,442.66 : x
  2. Step 2: Convert to fraction form
    118,653.80/177,883.14 = 55,442.66/x
  3. Step 3: Cross multiply
    118,653.80x = 177,883.14 × 55,442.66
  4. Step 4: Simplify right side
    118,653.80x = 9,862,314,450.75
  5. Step 5: Solve for x
    x = 9,862,314,450.75/118,653.80
  6. Step 6: Final answer
    x = 83,118.40

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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.