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Finding the Fourth Proportional to 80,907, 111,655.48 and 45,097.26

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Solution

The fourth proportional to 80,907, 111,655.48 and 45,097.26 is: 62,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,907 : 111,655.48 = 45,097.26 : x
  2. Step 2: Convert to fraction form
    80,907/111,655.48 = 45,097.26/x
  3. Step 3: Cross multiply
    80,907x = 111,655.48 × 45,097.26
  4. Step 4: Simplify right side
    80,907x = 5,035,356,211.98
  5. Step 5: Solve for x
    x = 5,035,356,211.98/80,907
  6. Step 6: Final answer
    x = 62,236.35

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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.