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Finding the Fourth Proportional to 255,662.08, 353,451.36 and 191,889.16

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Solution

The fourth proportional to 255,662.08, 353,451.36 and 191,889.16 is: 265,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,662.08 : 353,451.36 = 191,889.16 : x
  2. Step 2: Convert to fraction form
    255,662.08/353,451.36 = 191,889.16/x
  3. Step 3: Cross multiply
    255,662.08x = 353,451.36 × 191,889.16
  4. Step 4: Simplify right side
    255,662.08x = 67,823,484,571.26
  5. Step 5: Solve for x
    x = 67,823,484,571.26/255,662.08
  6. Step 6: Final answer
    x = 265,285.66

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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.