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Finding the Fourth Proportional to 73,136.41, 100,928.24 and 39,602.41

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Solution

The fourth proportional to 73,136.41, 100,928.24 and 39,602.41 is: 54,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,136.41 : 100,928.24 = 39,602.41 : x
  2. Step 2: Convert to fraction form
    73,136.41/100,928.24 = 39,602.41/x
  3. Step 3: Cross multiply
    73,136.41x = 100,928.24 × 39,602.41
  4. Step 4: Simplify right side
    73,136.41x = 3,997,001,036.42
  5. Step 5: Solve for x
    x = 3,997,001,036.42/73,136.41
  6. Step 6: Final answer
    x = 54,651.32

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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.