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Finding the Fourth Proportional to 248,070.60, 342,314.10 and 171,671.40

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Solution

The fourth proportional to 248,070.60, 342,314.10 and 171,671.40 is: 236,890.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,070.60 : 342,314.10 = 171,671.40 : x
  2. Step 2: Convert to fraction form
    248,070.60/342,314.10 = 171,671.40/x
  3. Step 3: Cross multiply
    248,070.60x = 342,314.10 × 171,671.40
  4. Step 4: Simplify right side
    248,070.60x = 58,765,540,786.74
  5. Step 5: Solve for x
    x = 58,765,540,786.74/248,070.60
  6. Step 6: Final answer
    x = 236,890.39

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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.