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Finding the Fourth Proportional to 90,047.88, 124,267.41 and 49,762.59

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Solution

The fourth proportional to 90,047.88, 124,267.41 and 49,762.59 is: 68,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,047.88 : 124,267.41 = 49,762.59 : x
  2. Step 2: Convert to fraction form
    90,047.88/124,267.41 = 49,762.59/x
  3. Step 3: Cross multiply
    90,047.88x = 124,267.41 × 49,762.59
  4. Step 4: Simplify right side
    90,047.88x = 6,183,868,174.19
  5. Step 5: Solve for x
    x = 6,183,868,174.19/90,047.88
  6. Step 6: Final answer
    x = 68,673.11

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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.