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Finding the Fourth Proportional to 74,530.80, 111,796.20 and 74,093.40

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Solution

The fourth proportional to 74,530.80, 111,796.20 and 74,093.40 is: 111,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,530.80 : 111,796.20 = 74,093.40 : x
  2. Step 2: Convert to fraction form
    74,530.80/111,796.20 = 74,093.40/x
  3. Step 3: Cross multiply
    74,530.80x = 111,796.20 × 74,093.40
  4. Step 4: Simplify right side
    74,530.80x = 8,283,360,565.08
  5. Step 5: Solve for x
    x = 8,283,360,565.08/74,530.80
  6. Step 6: Final answer
    x = 111,140.10

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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.