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Finding the Fourth Proportional to 86,101.87, 118,820.49 and 47,860.24

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Solution

The fourth proportional to 86,101.87, 118,820.49 and 47,860.24 is: 66,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,101.87 : 118,820.49 = 47,860.24 : x
  2. Step 2: Convert to fraction form
    86,101.87/118,820.49 = 47,860.24/x
  3. Step 3: Cross multiply
    86,101.87x = 118,820.49 × 47,860.24
  4. Step 4: Simplify right side
    86,101.87x = 5,686,777,168.32
  5. Step 5: Solve for x
    x = 5,686,777,168.32/86,101.87
  6. Step 6: Final answer
    x = 66,047.08

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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.