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Finding the Fourth Proportional to 201,965.99, 278,700.48 and 111,322.67

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Solution

The fourth proportional to 201,965.99, 278,700.48 and 111,322.67 is: 153,618.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,965.99 : 278,700.48 = 111,322.67 : x
  2. Step 2: Convert to fraction form
    201,965.99/278,700.48 = 111,322.67/x
  3. Step 3: Cross multiply
    201,965.99x = 278,700.48 × 111,322.67
  4. Step 4: Simplify right side
    201,965.99x = 31,025,680,170.38
  5. Step 5: Solve for x
    x = 31,025,680,170.38/201,965.99
  6. Step 6: Final answer
    x = 153,618.34

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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.