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Finding the Fourth Proportional to 118,188.85, 177,316.08 and 65,635.24

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Solution

The fourth proportional to 118,188.85, 177,316.08 and 65,635.24 is: 98,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,188.85 : 177,316.08 = 65,635.24 : x
  2. Step 2: Convert to fraction form
    118,188.85/177,316.08 = 65,635.24/x
  3. Step 3: Cross multiply
    118,188.85x = 177,316.08 × 65,635.24
  4. Step 4: Simplify right side
    118,188.85x = 11,638,183,466.66
  5. Step 5: Solve for x
    x = 11,638,183,466.66/118,188.85
  6. Step 6: Final answer
    x = 98,471.08

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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.