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Finding the Fourth Proportional to 140,471.21, 210,662.88 and 46,955.09

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Solution

The fourth proportional to 140,471.21, 210,662.88 and 46,955.09 is: 70,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,471.21 : 210,662.88 = 46,955.09 : x
  2. Step 2: Convert to fraction form
    140,471.21/210,662.88 = 46,955.09/x
  3. Step 3: Cross multiply
    140,471.21x = 210,662.88 × 46,955.09
  4. Step 4: Simplify right side
    140,471.21x = 9,891,694,490.06
  5. Step 5: Solve for x
    x = 9,891,694,490.06/140,471.21
  6. Step 6: Final answer
    x = 70,417.95

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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.