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Finding the Fourth Proportional to 195,782.60, 293,750.70 and 71,136.20

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Solution

The fourth proportional to 195,782.60, 293,750.70 and 71,136.20 is: 106,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,782.60 : 293,750.70 = 71,136.20 : x
  2. Step 2: Convert to fraction form
    195,782.60/293,750.70 = 71,136.20/x
  3. Step 3: Cross multiply
    195,782.60x = 293,750.70 × 71,136.20
  4. Step 4: Simplify right side
    195,782.60x = 20,896,308,545.34
  5. Step 5: Solve for x
    x = 20,896,308,545.34/195,782.60
  6. Step 6: Final answer
    x = 106,732.20

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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.