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Finding the Fourth Proportional to 259,954.45, 358,724.29 and 145,210.33

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Solution

The fourth proportional to 259,954.45, 358,724.29 and 145,210.33 is: 200,383.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,954.45 : 358,724.29 = 145,210.33 : x
  2. Step 2: Convert to fraction form
    259,954.45/358,724.29 = 145,210.33/x
  3. Step 3: Cross multiply
    259,954.45x = 358,724.29 × 145,210.33
  4. Step 4: Simplify right side
    259,954.45x = 52,090,472,529.92
  5. Step 5: Solve for x
    x = 52,090,472,529.92/259,954.45
  6. Step 6: Final answer
    x = 200,383.08

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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.