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Finding the Fourth Proportional to 235,215.90, 352,240.65 and 188,559.90

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Solution

The fourth proportional to 235,215.90, 352,240.65 and 188,559.90 is: 282,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,215.90 : 352,240.65 = 188,559.90 : x
  2. Step 2: Convert to fraction form
    235,215.90/352,240.65 = 188,559.90/x
  3. Step 3: Cross multiply
    235,215.90x = 352,240.65 × 188,559.90
  4. Step 4: Simplify right side
    235,215.90x = 66,418,461,739.94
  5. Step 5: Solve for x
    x = 66,418,461,739.94/235,215.90
  6. Step 6: Final answer
    x = 282,372.33

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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.