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Finding the Fourth Proportional to 550,521.21, 825,693.43 and 151,068.70

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Solution

The fourth proportional to 550,521.21, 825,693.43 and 151,068.70 is: 226,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,521.21 : 825,693.43 = 151,068.70 : x
  2. Step 2: Convert to fraction form
    550,521.21/825,693.43 = 151,068.70/x
  3. Step 3: Cross multiply
    550,521.21x = 825,693.43 × 151,068.70
  4. Step 4: Simplify right side
    550,521.21x = 124,736,433,068.64
  5. Step 5: Solve for x
    x = 124,736,433,068.64/550,521.21
  6. Step 6: Final answer
    x = 226,578.80

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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.