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Finding the Fourth Proportional to 522,502.70, 783,864.88 and 167,765.90

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Solution

The fourth proportional to 522,502.70, 783,864.88 and 167,765.90 is: 251,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,502.70 : 783,864.88 = 167,765.90 : x
  2. Step 2: Convert to fraction form
    522,502.70/783,864.88 = 167,765.90/x
  3. Step 3: Cross multiply
    522,502.70x = 783,864.88 × 167,765.90
  4. Step 4: Simplify right side
    522,502.70x = 131,505,797,071.59
  5. Step 5: Solve for x
    x = 131,505,797,071.59/522,502.70
  6. Step 6: Final answer
    x = 251,684.44

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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.