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Finding the Fourth Proportional to 330,656.94, 496,018.35 and 105,961.05

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Solution

The fourth proportional to 330,656.94, 496,018.35 and 105,961.05 is: 158,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,656.94 : 496,018.35 = 105,961.05 : x
  2. Step 2: Convert to fraction form
    330,656.94/496,018.35 = 105,961.05/x
  3. Step 3: Cross multiply
    330,656.94x = 496,018.35 × 105,961.05
  4. Step 4: Simplify right side
    330,656.94x = 52,558,625,185.27
  5. Step 5: Solve for x
    x = 52,558,625,185.27/330,656.94
  6. Step 6: Final answer
    x = 158,952.13

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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.