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Finding the Fourth Proportional to 117,255.60, 175,969.80 and 47,185.20

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Solution

The fourth proportional to 117,255.60, 175,969.80 and 47,185.20 is: 70,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,255.60 : 175,969.80 = 47,185.20 : x
  2. Step 2: Convert to fraction form
    117,255.60/175,969.80 = 47,185.20/x
  3. Step 3: Cross multiply
    117,255.60x = 175,969.80 × 47,185.20
  4. Step 4: Simplify right side
    117,255.60x = 8,303,170,206.96
  5. Step 5: Solve for x
    x = 8,303,170,206.96/117,255.60
  6. Step 6: Final answer
    x = 70,812.57

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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.