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Finding the Fourth Proportional to 500,678.55, 751,064.01 and 163,720.94

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Solution

The fourth proportional to 500,678.55, 751,064.01 and 163,720.94 is: 245,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,678.55 : 751,064.01 = 163,720.94 : x
  2. Step 2: Convert to fraction form
    500,678.55/751,064.01 = 163,720.94/x
  3. Step 3: Cross multiply
    500,678.55x = 751,064.01 × 163,720.94
  4. Step 4: Simplify right side
    500,678.55x = 122,964,905,717.37
  5. Step 5: Solve for x
    x = 122,964,905,717.37/500,678.55
  6. Step 6: Final answer
    x = 245,596.51

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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.