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Finding the Fourth Proportional to 79,556.18, 119,328 and 46,255

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Solution

The fourth proportional to 79,556.18, 119,328 and 46,255 is: 69,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,556.18 : 119,328 = 46,255 : x
  2. Step 2: Convert to fraction form
    79,556.18/119,328 = 46,255/x
  3. Step 3: Cross multiply
    79,556.18x = 119,328 × 46,255
  4. Step 4: Simplify right side
    79,556.18x = 5,519,516,640
  5. Step 5: Solve for x
    x = 5,519,516,640/79,556.18
  6. Step 6: Final answer
    x = 69,378.85

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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.