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Finding the Fourth Proportional to 250,970.91, 346,403.82 and 143,574.63

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Solution

The fourth proportional to 250,970.91, 346,403.82 and 143,574.63 is: 198,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,970.91 : 346,403.82 = 143,574.63 : x
  2. Step 2: Convert to fraction form
    250,970.91/346,403.82 = 143,574.63/x
  3. Step 3: Cross multiply
    250,970.91x = 346,403.82 × 143,574.63
  4. Step 4: Simplify right side
    250,970.91x = 49,734,800,287.09
  5. Step 5: Solve for x
    x = 49,734,800,287.09/250,970.91
  6. Step 6: Final answer
    x = 198,169.58

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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.