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Finding the Fourth Proportional to 79,360, 119,070 and 41,918.56

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Solution

The fourth proportional to 79,360, 119,070 and 41,918.56 is: 62,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,360 : 119,070 = 41,918.56 : x
  2. Step 2: Convert to fraction form
    79,360/119,070 = 41,918.56/x
  3. Step 3: Cross multiply
    79,360x = 119,070 × 41,918.56
  4. Step 4: Simplify right side
    79,360x = 4,991,242,939.20
  5. Step 5: Solve for x
    x = 4,991,242,939.20/79,360
  6. Step 6: Final answer
    x = 62,893.69

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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.