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Finding the Fourth Proportional to 242,570.36, 363,855.59 and 74,081.60

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Solution

The fourth proportional to 242,570.36, 363,855.59 and 74,081.60 is: 111,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,570.36 : 363,855.59 = 74,081.60 : x
  2. Step 2: Convert to fraction form
    242,570.36/363,855.59 = 74,081.60/x
  3. Step 3: Cross multiply
    242,570.36x = 363,855.59 × 74,081.60
  4. Step 4: Simplify right side
    242,570.36x = 26,955,006,192.12
  5. Step 5: Solve for x
    x = 26,955,006,192.12/242,570.36
  6. Step 6: Final answer
    x = 111,122.42

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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.