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Finding the Fourth Proportional to 116,860.80, 175,377.60 and 77,404.80

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Solution

The fourth proportional to 116,860.80, 175,377.60 and 77,404.80 is: 116,164.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,860.80 : 175,377.60 = 77,404.80 : x
  2. Step 2: Convert to fraction form
    116,860.80/175,377.60 = 77,404.80/x
  3. Step 3: Cross multiply
    116,860.80x = 175,377.60 × 77,404.80
  4. Step 4: Simplify right side
    116,860.80x = 13,575,068,052.48
  5. Step 5: Solve for x
    x = 13,575,068,052.48/116,860.80
  6. Step 6: Final answer
    x = 116,164.43

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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.