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Finding the Fourth Proportional to 118,709.55, 178,036.38 and 34,447.48

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Solution

The fourth proportional to 118,709.55, 178,036.38 and 34,447.48 is: 51,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,709.55 : 178,036.38 = 34,447.48 : x
  2. Step 2: Convert to fraction form
    118,709.55/178,036.38 = 34,447.48/x
  3. Step 3: Cross multiply
    118,709.55x = 178,036.38 × 34,447.48
  4. Step 4: Simplify right side
    118,709.55x = 6,132,904,194.23
  5. Step 5: Solve for x
    x = 6,132,904,194.23/118,709.55
  6. Step 6: Final answer
    x = 51,663.11

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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.