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Finding the Fourth Proportional to 104,728, 144,523.52 and 62,285.60

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Solution

The fourth proportional to 104,728, 144,523.52 and 62,285.60 is: 85,953.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,728 : 144,523.52 = 62,285.60 : x
  2. Step 2: Convert to fraction form
    104,728/144,523.52 = 62,285.60/x
  3. Step 3: Cross multiply
    104,728x = 144,523.52 × 62,285.60
  4. Step 4: Simplify right side
    104,728x = 9,001,734,157.31
  5. Step 5: Solve for x
    x = 9,001,734,157.31/104,728
  6. Step 6: Final answer
    x = 85,953.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.