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Finding the Fourth Proportional to 496,331.70, 744,502.01 and 141,345.56

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Solution

The fourth proportional to 496,331.70, 744,502.01 and 141,345.56 is: 212,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,331.70 : 744,502.01 = 141,345.56 : x
  2. Step 2: Convert to fraction form
    496,331.70/744,502.01 = 141,345.56/x
  3. Step 3: Cross multiply
    496,331.70x = 744,502.01 × 141,345.56
  4. Step 4: Simplify right side
    496,331.70x = 105,232,049,095.34
  5. Step 5: Solve for x
    x = 105,232,049,095.34/496,331.70
  6. Step 6: Final answer
    x = 212,019.60

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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.