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Finding the Fourth Proportional to 86,103.99, 118,824.93 and 47,343.45

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Solution

The fourth proportional to 86,103.99, 118,824.93 and 47,343.45 is: 65,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,103.99 : 118,824.93 = 47,343.45 : x
  2. Step 2: Convert to fraction form
    86,103.99/118,824.93 = 47,343.45/x
  3. Step 3: Cross multiply
    86,103.99x = 118,824.93 × 47,343.45
  4. Step 4: Simplify right side
    86,103.99x = 5,625,582,132.21
  5. Step 5: Solve for x
    x = 5,625,582,132.21/86,103.99
  6. Step 6: Final answer
    x = 65,334.74

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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.