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Finding the Fourth Proportional to 117,751.56, 162,495.62 and 64,035.42

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Solution

The fourth proportional to 117,751.56, 162,495.62 and 64,035.42 is: 88,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,751.56 : 162,495.62 = 64,035.42 : x
  2. Step 2: Convert to fraction form
    117,751.56/162,495.62 = 64,035.42/x
  3. Step 3: Cross multiply
    117,751.56x = 162,495.62 × 64,035.42
  4. Step 4: Simplify right side
    117,751.56x = 10,405,474,954.68
  5. Step 5: Solve for x
    x = 10,405,474,954.68/117,751.56
  6. Step 6: Final answer
    x = 88,368.04

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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.