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Finding the Fourth Proportional to 115,618.66, 159,572.01 and 70,310.86

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Solution

The fourth proportional to 115,618.66, 159,572.01 and 70,310.86 is: 97,040.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,618.66 : 159,572.01 = 70,310.86 : x
  2. Step 2: Convert to fraction form
    115,618.66/159,572.01 = 70,310.86/x
  3. Step 3: Cross multiply
    115,618.66x = 159,572.01 × 70,310.86
  4. Step 4: Simplify right side
    115,618.66x = 11,219,645,255.03
  5. Step 5: Solve for x
    x = 11,219,645,255.03/115,618.66
  6. Step 6: Final answer
    x = 97,040.09

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