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Finding the Fourth Proportional to 191,255.87, 286,880.56 and 66,593.63

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Solution

The fourth proportional to 191,255.87, 286,880.56 and 66,593.63 is: 99,889.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,255.87 : 286,880.56 = 66,593.63 : x
  2. Step 2: Convert to fraction form
    191,255.87/286,880.56 = 66,593.63/x
  3. Step 3: Cross multiply
    191,255.87x = 286,880.56 × 66,593.63
  4. Step 4: Simplify right side
    191,255.87x = 19,104,416,265.95
  5. Step 5: Solve for x
    x = 19,104,416,265.95/191,255.87
  6. Step 6: Final answer
    x = 99,889.31

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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.