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Finding the Fourth Proportional to 194,136.40, 291,204.60 and 154,478.80

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Solution

The fourth proportional to 194,136.40, 291,204.60 and 154,478.80 is: 231,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,136.40 : 291,204.60 = 154,478.80 : x
  2. Step 2: Convert to fraction form
    194,136.40/291,204.60 = 154,478.80/x
  3. Step 3: Cross multiply
    194,136.40x = 291,204.60 × 154,478.80
  4. Step 4: Simplify right side
    194,136.40x = 44,984,937,162.48
  5. Step 5: Solve for x
    x = 44,984,937,162.48/194,136.40
  6. Step 6: Final answer
    x = 231,718.20

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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.