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Finding the Fourth Proportional to 259,534.80, 389,302.20 and 93,301.20

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Solution

The fourth proportional to 259,534.80, 389,302.20 and 93,301.20 is: 139,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,534.80 : 389,302.20 = 93,301.20 : x
  2. Step 2: Convert to fraction form
    259,534.80/389,302.20 = 93,301.20/x
  3. Step 3: Cross multiply
    259,534.80x = 389,302.20 × 93,301.20
  4. Step 4: Simplify right side
    259,534.80x = 36,322,362,422.64
  5. Step 5: Solve for x
    x = 36,322,362,422.64/259,534.80
  6. Step 6: Final answer
    x = 139,951.80

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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.