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Finding the Fourth Proportional to 140,394.58, 210,568.92 and 46,900.06

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Solution

The fourth proportional to 140,394.58, 210,568.92 and 46,900.06 is: 70,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,394.58 : 210,568.92 = 46,900.06 : x
  2. Step 2: Convert to fraction form
    140,394.58/210,568.92 = 46,900.06/x
  3. Step 3: Cross multiply
    140,394.58x = 210,568.92 × 46,900.06
  4. Step 4: Simplify right side
    140,394.58x = 9,875,694,982.14
  5. Step 5: Solve for x
    x = 9,875,694,982.14/140,394.58
  6. Step 6: Final answer
    x = 70,342.42

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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.