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Finding the Fourth Proportional to 82,953.70, 124,430.55 and 49,273.90

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Solution

The fourth proportional to 82,953.70, 124,430.55 and 49,273.90 is: 73,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,953.70 : 124,430.55 = 49,273.90 : x
  2. Step 2: Convert to fraction form
    82,953.70/124,430.55 = 49,273.90/x
  3. Step 3: Cross multiply
    82,953.70x = 124,430.55 × 49,273.90
  4. Step 4: Simplify right side
    82,953.70x = 6,131,178,477.65
  5. Step 5: Solve for x
    x = 6,131,178,477.65/82,953.70
  6. Step 6: Final answer
    x = 73,910.85

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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.