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Finding the Fourth Proportional to 348,136.79, 522,209.81 and 111,479.49

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Solution

The fourth proportional to 348,136.79, 522,209.81 and 111,479.49 is: 167,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,136.79 : 522,209.81 = 111,479.49 : x
  2. Step 2: Convert to fraction form
    348,136.79/522,209.81 = 111,479.49/x
  3. Step 3: Cross multiply
    348,136.79x = 522,209.81 × 111,479.49
  4. Step 4: Simplify right side
    348,136.79x = 58,215,683,570.50
  5. Step 5: Solve for x
    x = 58,215,683,570.50/348,136.79
  6. Step 6: Final answer
    x = 167,220.72

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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.