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Finding the Fourth Proportional to 240,622.60, 360,984.12 and 72,136.12

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Solution

The fourth proportional to 240,622.60, 360,984.12 and 72,136.12 is: 108,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,622.60 : 360,984.12 = 72,136.12 : x
  2. Step 2: Convert to fraction form
    240,622.60/360,984.12 = 72,136.12/x
  3. Step 3: Cross multiply
    240,622.60x = 360,984.12 × 72,136.12
  4. Step 4: Simplify right side
    240,622.60x = 26,039,993,798.41
  5. Step 5: Solve for x
    x = 26,039,993,798.41/240,622.60
  6. Step 6: Final answer
    x = 108,219.24

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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.