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Finding the Fourth Proportional to 109,502.58, 151,078.16 and 61,096.68

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Solution

The fourth proportional to 109,502.58, 151,078.16 and 61,096.68 is: 84,293.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,502.58 : 151,078.16 = 61,096.68 : x
  2. Step 2: Convert to fraction form
    109,502.58/151,078.16 = 61,096.68/x
  3. Step 3: Cross multiply
    109,502.58x = 151,078.16 × 61,096.68
  4. Step 4: Simplify right side
    109,502.58x = 9,230,374,149.25
  5. Step 5: Solve for x
    x = 9,230,374,149.25/109,502.58
  6. Step 6: Final answer
    x = 84,293.67

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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.