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Finding the Fourth Proportional to 207,164.40, 309,228.25 and 191,949.54

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Solution

The fourth proportional to 207,164.40, 309,228.25 and 191,949.54 is: 286,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,164.40 : 309,228.25 = 191,949.54 : x
  2. Step 2: Convert to fraction form
    207,164.40/309,228.25 = 191,949.54/x
  3. Step 3: Cross multiply
    207,164.40x = 309,228.25 × 191,949.54
  4. Step 4: Simplify right side
    207,164.40x = 59,356,220,342.51
  5. Step 5: Solve for x
    x = 59,356,220,342.51/207,164.40
  6. Step 6: Final answer
    x = 286,517.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.