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Finding the Fourth Proportional to 330,655.84, 496,047.60 and 141,113.44

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Solution

The fourth proportional to 330,655.84, 496,047.60 and 141,113.44 is: 211,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,655.84 : 496,047.60 = 141,113.44 : x
  2. Step 2: Convert to fraction form
    330,655.84/496,047.60 = 141,113.44/x
  3. Step 3: Cross multiply
    330,655.84x = 496,047.60 × 141,113.44
  4. Step 4: Simplify right side
    330,655.84x = 69,998,983,239.74
  5. Step 5: Solve for x
    x = 69,998,983,239.74/330,655.84
  6. Step 6: Final answer
    x = 211,697.40

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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.