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Finding the Fourth Proportional to 105,955.65, 146,227 and 60,647.85

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Solution

The fourth proportional to 105,955.65, 146,227 and 60,647.85 is: 83,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,955.65 : 146,227 = 60,647.85 : x
  2. Step 2: Convert to fraction form
    105,955.65/146,227 = 60,647.85/x
  3. Step 3: Cross multiply
    105,955.65x = 146,227 × 60,647.85
  4. Step 4: Simplify right side
    105,955.65x = 8,868,353,161.95
  5. Step 5: Solve for x
    x = 8,868,353,161.95/105,955.65
  6. Step 6: Final answer
    x = 83,698.73

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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.