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Finding the Fourth Proportional to 336,061.47, 504,092.21 and 99,385.72

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Solution

The fourth proportional to 336,061.47, 504,092.21 and 99,385.72 is: 149,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,061.47 : 504,092.21 = 99,385.72 : x
  2. Step 2: Convert to fraction form
    336,061.47/504,092.21 = 99,385.72/x
  3. Step 3: Cross multiply
    336,061.47x = 504,092.21 × 99,385.72
  4. Step 4: Simplify right side
    336,061.47x = 50,099,567,237.24
  5. Step 5: Solve for x
    x = 50,099,567,237.24/336,061.47
  6. Step 6: Final answer
    x = 149,078.58

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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.