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Finding the Fourth Proportional to 174,279.60, 261,352.98 and 74,485.98

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Solution

The fourth proportional to 174,279.60, 261,352.98 and 74,485.98 is: 111,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,279.60 : 261,352.98 = 74,485.98 : x
  2. Step 2: Convert to fraction form
    174,279.60/261,352.98 = 74,485.98/x
  3. Step 3: Cross multiply
    174,279.60x = 261,352.98 × 74,485.98
  4. Step 4: Simplify right side
    174,279.60x = 19,467,132,841.22
  5. Step 5: Solve for x
    x = 19,467,132,841.22/174,279.60
  6. Step 6: Final answer
    x = 111,700.58

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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.