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Finding the Fourth Proportional to 197,123.80, 295,685.70 and 144,635.80

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Solution

The fourth proportional to 197,123.80, 295,685.70 and 144,635.80 is: 216,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,123.80 : 295,685.70 = 144,635.80 : x
  2. Step 2: Convert to fraction form
    197,123.80/295,685.70 = 144,635.80/x
  3. Step 3: Cross multiply
    197,123.80x = 295,685.70 × 144,635.80
  4. Step 4: Simplify right side
    197,123.80x = 42,766,737,768.06
  5. Step 5: Solve for x
    x = 42,766,737,768.06/197,123.80
  6. Step 6: Final answer
    x = 216,953.70

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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.