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Finding the Fourth Proportional to 104,804.55, 144,625.91 and 57,055.05

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Solution

The fourth proportional to 104,804.55, 144,625.91 and 57,055.05 is: 78,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,804.55 : 144,625.91 = 57,055.05 : x
  2. Step 2: Convert to fraction form
    104,804.55/144,625.91 = 57,055.05/x
  3. Step 3: Cross multiply
    104,804.55x = 144,625.91 × 57,055.05
  4. Step 4: Simplify right side
    104,804.55x = 8,251,638,241.07
  5. Step 5: Solve for x
    x = 8,251,638,241.07/104,804.55
  6. Step 6: Final answer
    x = 78,733.59

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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.