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Finding the Fourth Proportional to 86,136.40, 129,151.68 and 33,484.51

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Solution

The fourth proportional to 86,136.40, 129,151.68 and 33,484.51 is: 50,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.40 : 129,151.68 = 33,484.51 : x
  2. Step 2: Convert to fraction form
    86,136.40/129,151.68 = 33,484.51/x
  3. Step 3: Cross multiply
    86,136.40x = 129,151.68 × 33,484.51
  4. Step 4: Simplify right side
    86,136.40x = 4,324,580,720.48
  5. Step 5: Solve for x
    x = 4,324,580,720.48/86,136.40
  6. Step 6: Final answer
    x = 50,206.19

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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.