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Finding the Fourth Proportional to 242,557.81, 363,828.49 and 74,071.33

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Solution

The fourth proportional to 242,557.81, 363,828.49 and 74,071.33 is: 111,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,557.81 : 363,828.49 = 74,071.33 : x
  2. Step 2: Convert to fraction form
    242,557.81/363,828.49 = 74,071.33/x
  3. Step 3: Cross multiply
    242,557.81x = 363,828.49 × 74,071.33
  4. Step 4: Simplify right side
    242,557.81x = 26,949,260,146.19
  5. Step 5: Solve for x
    x = 26,949,260,146.19/242,557.81
  6. Step 6: Final answer
    x = 111,104.48

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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.