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Finding the Fourth Proportional to 117,920.88, 176,880.24 and 47,783.52

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Solution

The fourth proportional to 117,920.88, 176,880.24 and 47,783.52 is: 71,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,920.88 : 176,880.24 = 47,783.52 : x
  2. Step 2: Convert to fraction form
    117,920.88/176,880.24 = 47,783.52/x
  3. Step 3: Cross multiply
    117,920.88x = 176,880.24 × 47,783.52
  4. Step 4: Simplify right side
    117,920.88x = 8,451,960,485.64
  5. Step 5: Solve for x
    x = 8,451,960,485.64/117,920.88
  6. Step 6: Final answer
    x = 71,674.84

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1.5x scale

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.