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Finding the Fourth Proportional to 117,590.60, 176,385.90 and 70,934.60

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Solution

The fourth proportional to 117,590.60, 176,385.90 and 70,934.60 is: 106,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,590.60 : 176,385.90 = 70,934.60 : x
  2. Step 2: Convert to fraction form
    117,590.60/176,385.90 = 70,934.60/x
  3. Step 3: Cross multiply
    117,590.60x = 176,385.90 × 70,934.60
  4. Step 4: Simplify right side
    117,590.60x = 12,511,863,262.14
  5. Step 5: Solve for x
    x = 12,511,863,262.14/117,590.60
  6. Step 6: Final answer
    x = 106,401.90

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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.