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Finding the Fourth Proportional to 242,431.68, 363,246.56 and 123,940.02

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Solution

The fourth proportional to 242,431.68, 363,246.56 and 123,940.02 is: 185,705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,431.68 : 363,246.56 = 123,940.02 : x
  2. Step 2: Convert to fraction form
    242,431.68/363,246.56 = 123,940.02/x
  3. Step 3: Cross multiply
    242,431.68x = 363,246.56 × 123,940.02
  4. Step 4: Simplify right side
    242,431.68x = 45,020,785,911.33
  5. Step 5: Solve for x
    x = 45,020,785,911.33/242,431.68
  6. Step 6: Final answer
    x = 185,705.04

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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.