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Finding the Fourth Proportional to 116,788.88, 175,176.84 and 103,790

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Solution

The fourth proportional to 116,788.88, 175,176.84 and 103,790 is: 155,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,788.88 : 175,176.84 = 103,790 : x
  2. Step 2: Convert to fraction form
    116,788.88/175,176.84 = 103,790/x
  3. Step 3: Cross multiply
    116,788.88x = 175,176.84 × 103,790
  4. Step 4: Simplify right side
    116,788.88x = 18,181,604,223.60
  5. Step 5: Solve for x
    x = 18,181,604,223.60/116,788.88
  6. Step 6: Final answer
    x = 155,679.24

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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.