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Finding the Fourth Proportional to 104,395.26, 144,090.18 and 61,978.26

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Solution

The fourth proportional to 104,395.26, 144,090.18 and 61,978.26 is: 85,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,395.26 : 144,090.18 = 61,978.26 : x
  2. Step 2: Convert to fraction form
    104,395.26/144,090.18 = 61,978.26/x
  3. Step 3: Cross multiply
    104,395.26x = 144,090.18 × 61,978.26
  4. Step 4: Simplify right side
    104,395.26x = 8,930,458,639.49
  5. Step 5: Solve for x
    x = 8,930,458,639.49/104,395.26
  6. Step 6: Final answer
    x = 85,544.68

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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.