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Finding the Fourth Proportional to 255,573.01, 352,693.20 and 140,855.82

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Solution

The fourth proportional to 255,573.01, 352,693.20 and 140,855.82 is: 194,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,573.01 : 352,693.20 = 140,855.82 : x
  2. Step 2: Convert to fraction form
    255,573.01/352,693.20 = 140,855.82/x
  3. Step 3: Cross multiply
    255,573.01x = 352,693.20 × 140,855.82
  4. Step 4: Simplify right side
    255,573.01x = 49,678,889,894.42
  5. Step 5: Solve for x
    x = 49,678,889,894.42/255,573.01
  6. Step 6: Final answer
    x = 194,382.38

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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.