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Finding the Fourth Proportional to 101,987.96, 152,969.76 and 27,113.58

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Solution

The fourth proportional to 101,987.96, 152,969.76 and 27,113.58 is: 40,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,987.96 : 152,969.76 = 27,113.58 : x
  2. Step 2: Convert to fraction form
    101,987.96/152,969.76 = 27,113.58/x
  3. Step 3: Cross multiply
    101,987.96x = 152,969.76 × 27,113.58
  4. Step 4: Simplify right side
    101,987.96x = 4,147,557,825.34
  5. Step 5: Solve for x
    x = 4,147,557,825.34/101,987.96
  6. Step 6: Final answer
    x = 40,667.13

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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.