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Finding the Fourth Proportional to 255,780.56, 352,983.36 and 141,060.86

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Solution

The fourth proportional to 255,780.56, 352,983.36 and 141,060.86 is: 194,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,780.56 : 352,983.36 = 141,060.86 : x
  2. Step 2: Convert to fraction form
    255,780.56/352,983.36 = 141,060.86/x
  3. Step 3: Cross multiply
    255,780.56x = 352,983.36 × 141,060.86
  4. Step 4: Simplify right side
    255,780.56x = 49,792,134,562.37
  5. Step 5: Solve for x
    x = 49,792,134,562.37/255,780.56
  6. Step 6: Final answer
    x = 194,667.40

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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.