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Finding the Fourth Proportional to 141,069.84, 194,662.20 and 84,479.76

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Solution

The fourth proportional to 141,069.84, 194,662.20 and 84,479.76 is: 116,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,069.84 : 194,662.20 = 84,479.76 : x
  2. Step 2: Convert to fraction form
    141,069.84/194,662.20 = 84,479.76/x
  3. Step 3: Cross multiply
    141,069.84x = 194,662.20 × 84,479.76
  4. Step 4: Simplify right side
    141,069.84x = 16,445,015,937.07
  5. Step 5: Solve for x
    x = 16,445,015,937.07/141,069.84
  6. Step 6: Final answer
    x = 116,573.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.