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Finding the Fourth Proportional to 117,920.53, 176,880.39 and 47,799.64

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Solution

The fourth proportional to 117,920.53, 176,880.39 and 47,799.64 is: 71,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,920.53 : 176,880.39 = 47,799.64 : x
  2. Step 2: Convert to fraction form
    117,920.53/176,880.39 = 47,799.64/x
  3. Step 3: Cross multiply
    117,920.53x = 176,880.39 × 47,799.64
  4. Step 4: Simplify right side
    117,920.53x = 8,454,818,965.06
  5. Step 5: Solve for x
    x = 8,454,818,965.06/117,920.53
  6. Step 6: Final answer
    x = 71,699.30

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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.