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Finding the Fourth Proportional to 256,208.00, 353,566.94 and 143,030.75

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Solution

The fourth proportional to 256,208.00, 353,566.94 and 143,030.75 is: 197,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,208.00 : 353,566.94 = 143,030.75 : x
  2. Step 2: Convert to fraction form
    256,208.00/353,566.94 = 143,030.75/x
  3. Step 3: Cross multiply
    256,208.00x = 353,566.94 × 143,030.75
  4. Step 4: Simplify right side
    256,208.00x = 50,570,942,120.42
  5. Step 5: Solve for x
    x = 50,570,942,120.42/256,208.00
  6. Step 6: Final answer
    x = 197,382.37

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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.