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Finding the Fourth Proportional to 247,984.65, 342,256.16 and 151,244.63

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Solution

The fourth proportional to 247,984.65, 342,256.16 and 151,244.63 is: 208,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,984.65 : 342,256.16 = 151,244.63 : x
  2. Step 2: Convert to fraction form
    247,984.65/342,256.16 = 151,244.63/x
  3. Step 3: Cross multiply
    247,984.65x = 342,256.16 × 151,244.63
  4. Step 4: Simplify right side
    247,984.65x = 51,764,404,951.25
  5. Step 5: Solve for x
    x = 51,764,404,951.25/247,984.65
  6. Step 6: Final answer
    x = 208,740.36

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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.