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Finding the Fourth Proportional to 259,858.98, 389,788.44 and 97,783.47

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Solution

The fourth proportional to 259,858.98, 389,788.44 and 97,783.47 is: 146,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,858.98 : 389,788.44 = 97,783.47 : x
  2. Step 2: Convert to fraction form
    259,858.98/389,788.44 = 97,783.47/x
  3. Step 3: Cross multiply
    259,858.98x = 389,788.44 × 97,783.47
  4. Step 4: Simplify right side
    259,858.98x = 38,114,866,229.09
  5. Step 5: Solve for x
    x = 38,114,866,229.09/259,858.98
  6. Step 6: Final answer
    x = 146,675.19

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Similar ratio
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1.5x scale

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.