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Finding the Fourth Proportional to 613,041.92, 919,695.23 and 186,611.09

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Solution

The fourth proportional to 613,041.92, 919,695.23 and 186,611.09 is: 279,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,041.92 : 919,695.23 = 186,611.09 : x
  2. Step 2: Convert to fraction form
    613,041.92/919,695.23 = 186,611.09/x
  3. Step 3: Cross multiply
    613,041.92x = 919,695.23 × 186,611.09
  4. Step 4: Simplify right side
    613,041.92x = 171,625,329,338.10
  5. Step 5: Solve for x
    x = 171,625,329,338.10/613,041.92
  6. Step 6: Final answer
    x = 279,956.92

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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.