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Finding the Fourth Proportional to 221,651.40, 332,685.90 and 116,545.80

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Solution

The fourth proportional to 221,651.40, 332,685.90 and 116,545.80 is: 174,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,651.40 : 332,685.90 = 116,545.80 : x
  2. Step 2: Convert to fraction form
    221,651.40/332,685.90 = 116,545.80/x
  3. Step 3: Cross multiply
    221,651.40x = 332,685.90 × 116,545.80
  4. Step 4: Simplify right side
    221,651.40x = 38,773,144,364.22
  5. Step 5: Solve for x
    x = 38,773,144,364.22/221,651.40
  6. Step 6: Final answer
    x = 174,928.49

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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.