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Finding the Fourth Proportional to 330,752.79, 496,223.40 and 162,323.72

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Solution

The fourth proportional to 330,752.79, 496,223.40 and 162,323.72 is: 243,531.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,752.79 : 496,223.40 = 162,323.72 : x
  2. Step 2: Convert to fraction form
    330,752.79/496,223.40 = 162,323.72/x
  3. Step 3: Cross multiply
    330,752.79x = 496,223.40 × 162,323.72
  4. Step 4: Simplify right side
    330,752.79x = 80,548,828,239.05
  5. Step 5: Solve for x
    x = 80,548,828,239.05/330,752.79
  6. Step 6: Final answer
    x = 243,531.82

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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.