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Finding the Fourth Proportional to 242,100, 363,208.32 and 75,888

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Solution

The fourth proportional to 242,100, 363,208.32 and 75,888 is: 113,850.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,100 : 363,208.32 = 75,888 : x
  2. Step 2: Convert to fraction form
    242,100/363,208.32 = 75,888/x
  3. Step 3: Cross multiply
    242,100x = 363,208.32 × 75,888
  4. Step 4: Simplify right side
    242,100x = 27,563,152,988.16
  5. Step 5: Solve for x
    x = 27,563,152,988.16/242,100
  6. Step 6: Final answer
    x = 113,850.28

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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.