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Finding the Fourth Proportional to 149,068.80, 223,862.40 and 79,084.80

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Solution

The fourth proportional to 149,068.80, 223,862.40 and 79,084.80 is: 118,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,068.80 : 223,862.40 = 79,084.80 : x
  2. Step 2: Convert to fraction form
    149,068.80/223,862.40 = 79,084.80/x
  3. Step 3: Cross multiply
    149,068.80x = 223,862.40 × 79,084.80
  4. Step 4: Simplify right side
    149,068.80x = 17,704,113,131.52
  5. Step 5: Solve for x
    x = 17,704,113,131.52/149,068.80
  6. Step 6: Final answer
    x = 118,764.71

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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.