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Finding the Fourth Proportional to 175,387.60, 263,081.40 and 131,323.60

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Solution

The fourth proportional to 175,387.60, 263,081.40 and 131,323.60 is: 196,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,387.60 : 263,081.40 = 131,323.60 : x
  2. Step 2: Convert to fraction form
    175,387.60/263,081.40 = 131,323.60/x
  3. Step 3: Cross multiply
    175,387.60x = 263,081.40 × 131,323.60
  4. Step 4: Simplify right side
    175,387.60x = 34,548,796,541.04
  5. Step 5: Solve for x
    x = 34,548,796,541.04/175,387.60
  6. Step 6: Final answer
    x = 196,985.40

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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.