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Finding the Fourth Proportional to 238,880.58, 358,333.42 and 61,388.78

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Solution

The fourth proportional to 238,880.58, 358,333.42 and 61,388.78 is: 92,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,880.58 : 358,333.42 = 61,388.78 : x
  2. Step 2: Convert to fraction form
    238,880.58/358,333.42 = 61,388.78/x
  3. Step 3: Cross multiply
    238,880.58x = 358,333.42 × 61,388.78
  4. Step 4: Simplify right side
    238,880.58x = 21,997,651,487.03
  5. Step 5: Solve for x
    x = 21,997,651,487.03/238,880.58
  6. Step 6: Final answer
    x = 92,086.40

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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.