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Finding the Fourth Proportional to 176,005.80, 264,008.70 and 81,235.80

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Solution

The fourth proportional to 176,005.80, 264,008.70 and 81,235.80 is: 121,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,005.80 : 264,008.70 = 81,235.80 : x
  2. Step 2: Convert to fraction form
    176,005.80/264,008.70 = 81,235.80/x
  3. Step 3: Cross multiply
    176,005.80x = 264,008.70 × 81,235.80
  4. Step 4: Simplify right side
    176,005.80x = 21,446,957,951.46
  5. Step 5: Solve for x
    x = 21,446,957,951.46/176,005.80
  6. Step 6: Final answer
    x = 121,853.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.