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Finding the Fourth Proportional to 191,611.97, 264,224.10 and 143,137.93

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Solution

The fourth proportional to 191,611.97, 264,224.10 and 143,137.93 is: 197,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,611.97 : 264,224.10 = 143,137.93 : x
  2. Step 2: Convert to fraction form
    191,611.97/264,224.10 = 143,137.93/x
  3. Step 3: Cross multiply
    191,611.97x = 264,224.10 × 143,137.93
  4. Step 4: Simplify right side
    191,611.97x = 37,820,490,730.11
  5. Step 5: Solve for x
    x = 37,820,490,730.11/191,611.97
  6. Step 6: Final answer
    x = 197,380.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.