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Finding the Fourth Proportional to 118,836.63, 178,253.24 and 28,880.01

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Solution

The fourth proportional to 118,836.63, 178,253.24 and 28,880.01 is: 43,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,836.63 : 178,253.24 = 28,880.01 : x
  2. Step 2: Convert to fraction form
    118,836.63/178,253.24 = 28,880.01/x
  3. Step 3: Cross multiply
    118,836.63x = 178,253.24 × 28,880.01
  4. Step 4: Simplify right side
    118,836.63x = 5,147,955,209.33
  5. Step 5: Solve for x
    x = 5,147,955,209.33/118,836.63
  6. Step 6: Final answer
    x = 43,319.60

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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.