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Finding the Fourth Proportional to 255,963.30, 353,251.68 and 141,252.72

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Solution

The fourth proportional to 255,963.30, 353,251.68 and 141,252.72 is: 194,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,963.30 : 353,251.68 = 141,252.72 : x
  2. Step 2: Convert to fraction form
    255,963.30/353,251.68 = 141,252.72/x
  3. Step 3: Cross multiply
    255,963.30x = 353,251.68 × 141,252.72
  4. Step 4: Simplify right side
    255,963.30x = 49,897,760,644.57
  5. Step 5: Solve for x
    x = 49,897,760,644.57/255,963.30
  6. Step 6: Final answer
    x = 194,941.07

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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.