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Finding the Fourth Proportional to 118,018.58, 177,101.67 and 47,897.89

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Solution

The fourth proportional to 118,018.58, 177,101.67 and 47,897.89 is: 71,876.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,018.58 : 177,101.67 = 47,897.89 : x
  2. Step 2: Convert to fraction form
    118,018.58/177,101.67 = 47,897.89/x
  3. Step 3: Cross multiply
    118,018.58x = 177,101.67 × 47,897.89
  4. Step 4: Simplify right side
    118,018.58x = 8,482,796,045.34
  5. Step 5: Solve for x
    x = 8,482,796,045.34/118,018.58
  6. Step 6: Final answer
    x = 71,876.79

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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.