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Finding the Fourth Proportional to 201,675.95, 278,302.25 and 111,014.21

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Solution

The fourth proportional to 201,675.95, 278,302.25 and 111,014.21 is: 153,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,675.95 : 278,302.25 = 111,014.21 : x
  2. Step 2: Convert to fraction form
    201,675.95/278,302.25 = 111,014.21/x
  3. Step 3: Cross multiply
    201,675.95x = 278,302.25 × 111,014.21
  4. Step 4: Simplify right side
    201,675.95x = 30,895,505,398.26
  5. Step 5: Solve for x
    x = 30,895,505,398.26/201,675.95
  6. Step 6: Final answer
    x = 153,193.80

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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.