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Finding the Fourth Proportional to 255,644.07, 352,772.67 and 140,916.39

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Solution

The fourth proportional to 255,644.07, 352,772.67 and 140,916.39 is: 194,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,644.07 : 352,772.67 = 140,916.39 : x
  2. Step 2: Convert to fraction form
    255,644.07/352,772.67 = 140,916.39/x
  3. Step 3: Cross multiply
    255,644.07x = 352,772.67 × 140,916.39
  4. Step 4: Simplify right side
    255,644.07x = 49,711,451,147.06
  5. Step 5: Solve for x
    x = 49,711,451,147.06/255,644.07
  6. Step 6: Final answer
    x = 194,455.72

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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.