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Finding the Fourth Proportional to 191,894.56, 287,839.81 and 65,533.36

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Solution

The fourth proportional to 191,894.56, 287,839.81 and 65,533.36 is: 98,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,894.56 : 287,839.81 = 65,533.36 : x
  2. Step 2: Convert to fraction form
    191,894.56/287,839.81 = 65,533.36/x
  3. Step 3: Cross multiply
    191,894.56x = 287,839.81 × 65,533.36
  4. Step 4: Simplify right side
    191,894.56x = 18,863,109,891.06
  5. Step 5: Solve for x
    x = 18,863,109,891.06/191,894.56
  6. Step 6: Final answer
    x = 98,299.35

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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.