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Finding the Fourth Proportional to 221,642.40, 332,672.40 and 116,536.80

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Solution

The fourth proportional to 221,642.40, 332,672.40 and 116,536.80 is: 174,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,642.40 : 332,672.40 = 116,536.80 : x
  2. Step 2: Convert to fraction form
    221,642.40/332,672.40 = 116,536.80/x
  3. Step 3: Cross multiply
    221,642.40x = 332,672.40 × 116,536.80
  4. Step 4: Simplify right side
    221,642.40x = 38,768,576,944.32
  5. Step 5: Solve for x
    x = 38,768,576,944.32/221,642.40
  6. Step 6: Final answer
    x = 174,914.98

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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.