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Finding the Fourth Proportional to 101,599.44, 152,428.32 and 66,495.66

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Solution

The fourth proportional to 101,599.44, 152,428.32 and 66,495.66 is: 99,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,599.44 : 152,428.32 = 66,495.66 : x
  2. Step 2: Convert to fraction form
    101,599.44/152,428.32 = 66,495.66/x
  3. Step 3: Cross multiply
    101,599.44x = 152,428.32 × 66,495.66
  4. Step 4: Simplify right side
    101,599.44x = 10,135,821,741.09
  5. Step 5: Solve for x
    x = 10,135,821,741.09/101,599.44
  6. Step 6: Final answer
    x = 99,762.57

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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.