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Finding the Fourth Proportional to 242,048.40, 363,072.60 and 123,680.40

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Solution

The fourth proportional to 242,048.40, 363,072.60 and 123,680.40 is: 185,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,048.40 : 363,072.60 = 123,680.40 : x
  2. Step 2: Convert to fraction form
    242,048.40/363,072.60 = 123,680.40/x
  3. Step 3: Cross multiply
    242,048.40x = 363,072.60 × 123,680.40
  4. Step 4: Simplify right side
    242,048.40x = 44,904,964,397.04
  5. Step 5: Solve for x
    x = 44,904,964,397.04/242,048.40
  6. Step 6: Final answer
    x = 185,520.60

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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.