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Finding the Fourth Proportional to 242,552.40, 363,763.80 and 74,072.40

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Solution

The fourth proportional to 242,552.40, 363,763.80 and 74,072.40 is: 111,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,552.40 : 363,763.80 = 74,072.40 : x
  2. Step 2: Convert to fraction form
    242,552.40/363,763.80 = 74,072.40/x
  3. Step 3: Cross multiply
    242,552.40x = 363,763.80 × 74,072.40
  4. Step 4: Simplify right side
    242,552.40x = 26,944,857,699.12
  5. Step 5: Solve for x
    x = 26,944,857,699.12/242,552.40
  6. Step 6: Final answer
    x = 111,088.81

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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.