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Finding the Fourth Proportional to 43,255.80, 64,980.90 and 41,603.40

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Solution

The fourth proportional to 43,255.80, 64,980.90 and 41,603.40 is: 62,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,255.80 : 64,980.90 = 41,603.40 : x
  2. Step 2: Convert to fraction form
    43,255.80/64,980.90 = 41,603.40/x
  3. Step 3: Cross multiply
    43,255.80x = 64,980.90 × 41,603.40
  4. Step 4: Simplify right side
    43,255.80x = 2,703,426,375.06
  5. Step 5: Solve for x
    x = 2,703,426,375.06/43,255.80
  6. Step 6: Final answer
    x = 62,498.59

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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.