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Finding the Fourth Proportional to 255,373.98, 352,412.76 and 140,650.44

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Solution

The fourth proportional to 255,373.98, 352,412.76 and 140,650.44 is: 194,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,373.98 : 352,412.76 = 140,650.44 : x
  2. Step 2: Convert to fraction form
    255,373.98/352,412.76 = 140,650.44/x
  3. Step 3: Cross multiply
    255,373.98x = 352,412.76 × 140,650.44
  4. Step 4: Simplify right side
    255,373.98x = 49,567,009,755.61
  5. Step 5: Solve for x
    x = 49,567,009,755.61/255,373.98
  6. Step 6: Final answer
    x = 194,095.77

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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.