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Finding the Fourth Proportional to 99,450.72, 148,968.72 and 44,085.60

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Solution

The fourth proportional to 99,450.72, 148,968.72 and 44,085.60 is: 66,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,450.72 : 148,968.72 = 44,085.60 : x
  2. Step 2: Convert to fraction form
    99,450.72/148,968.72 = 44,085.60/x
  3. Step 3: Cross multiply
    99,450.72x = 148,968.72 × 44,085.60
  4. Step 4: Simplify right side
    99,450.72x = 6,567,375,402.43
  5. Step 5: Solve for x
    x = 6,567,375,402.43/99,450.72
  6. Step 6: Final answer
    x = 66,036.48

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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.