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Finding the Fourth Proportional to 330,978.72, 496,484.48 and 94,356.26

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Solution

The fourth proportional to 330,978.72, 496,484.48 and 94,356.26 is: 141,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,978.72 : 496,484.48 = 94,356.26 : x
  2. Step 2: Convert to fraction form
    330,978.72/496,484.48 = 94,356.26/x
  3. Step 3: Cross multiply
    330,978.72x = 496,484.48 × 94,356.26
  4. Step 4: Simplify right side
    330,978.72x = 46,846,418,680.84
  5. Step 5: Solve for x
    x = 46,846,418,680.84/330,978.72
  6. Step 6: Final answer
    x = 141,539.07

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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.