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Finding the Fourth Proportional to 281,759.60, 388,868.10 and 174,364.25

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Solution

The fourth proportional to 281,759.60, 388,868.10 and 174,364.25 is: 240,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,759.60 : 388,868.10 = 174,364.25 : x
  2. Step 2: Convert to fraction form
    281,759.60/388,868.10 = 174,364.25/x
  3. Step 3: Cross multiply
    281,759.60x = 388,868.10 × 174,364.25
  4. Step 4: Simplify right side
    281,759.60x = 67,804,694,605.43
  5. Step 5: Solve for x
    x = 67,804,694,605.43/281,759.60
  6. Step 6: Final answer
    x = 240,647.33

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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.