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Finding the Fourth Proportional to 117,147.81, 175,580.88 and 53,880.75

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Solution

The fourth proportional to 117,147.81, 175,580.88 and 53,880.75 is: 80,756.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,147.81 : 175,580.88 = 53,880.75 : x
  2. Step 2: Convert to fraction form
    117,147.81/175,580.88 = 53,880.75/x
  3. Step 3: Cross multiply
    117,147.81x = 175,580.88 × 53,880.75
  4. Step 4: Simplify right side
    117,147.81x = 9,460,429,500.06
  5. Step 5: Solve for x
    x = 9,460,429,500.06/117,147.81
  6. Step 6: Final answer
    x = 80,756.35

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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.