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Finding the Fourth Proportional to 342,731.60, 472,975.44 and 187,696.48

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Solution

The fourth proportional to 342,731.60, 472,975.44 and 187,696.48 is: 259,024.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,731.60 : 472,975.44 = 187,696.48 : x
  2. Step 2: Convert to fraction form
    342,731.60/472,975.44 = 187,696.48/x
  3. Step 3: Cross multiply
    342,731.60x = 472,975.44 × 187,696.48
  4. Step 4: Simplify right side
    342,731.60x = 88,775,825,214.45
  5. Step 5: Solve for x
    x = 88,775,825,214.45/342,731.60
  6. Step 6: Final answer
    x = 259,024.34

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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.