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Finding the Fourth Proportional to 524,240.43, 786,359.32 and 145,159.90

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Solution

The fourth proportional to 524,240.43, 786,359.32 and 145,159.90 is: 217,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,240.43 : 786,359.32 = 145,159.90 : x
  2. Step 2: Convert to fraction form
    524,240.43/786,359.32 = 145,159.90/x
  3. Step 3: Cross multiply
    524,240.43x = 786,359.32 × 145,159.90
  4. Step 4: Simplify right side
    524,240.43x = 114,147,840,255.27
  5. Step 5: Solve for x
    x = 114,147,840,255.27/524,240.43
  6. Step 6: Final answer
    x = 217,739.48

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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.