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Finding the Fourth Proportional to 490,718.88, 736,156.08 and 153,732.96

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Solution

The fourth proportional to 490,718.88, 736,156.08 and 153,732.96 is: 230,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,718.88 : 736,156.08 = 153,732.96 : x
  2. Step 2: Convert to fraction form
    490,718.88/736,156.08 = 153,732.96/x
  3. Step 3: Cross multiply
    490,718.88x = 736,156.08 × 153,732.96
  4. Step 4: Simplify right side
    490,718.88x = 113,171,453,200.40
  5. Step 5: Solve for x
    x = 113,171,453,200.40/490,718.88
  6. Step 6: Final answer
    x = 230,623.80

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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.