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Finding the Fourth Proportional to 255,889.60, 353,111.74 and 141,169.71

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Solution

The fourth proportional to 255,889.60, 353,111.74 and 141,169.71 is: 194,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,889.60 : 353,111.74 = 141,169.71 : x
  2. Step 2: Convert to fraction form
    255,889.60/353,111.74 = 141,169.71/x
  3. Step 3: Cross multiply
    255,889.60x = 353,111.74 × 141,169.71
  4. Step 4: Simplify right side
    255,889.60x = 49,848,681,933.40
  5. Step 5: Solve for x
    x = 49,848,681,933.40/255,889.60
  6. Step 6: Final answer
    x = 194,805.42

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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.