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Finding the Fourth Proportional to 422,038.92, 633,120.96 and 122,521.98

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Solution

The fourth proportional to 422,038.92, 633,120.96 and 122,521.98 is: 183,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,038.92 : 633,120.96 = 122,521.98 : x
  2. Step 2: Convert to fraction form
    422,038.92/633,120.96 = 122,521.98/x
  3. Step 3: Cross multiply
    422,038.92x = 633,120.96 × 122,521.98
  4. Step 4: Simplify right side
    422,038.92x = 77,571,233,598.70
  5. Step 5: Solve for x
    x = 77,571,233,598.70/422,038.92
  6. Step 6: Final answer
    x = 183,801.14

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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.