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Finding the Fourth Proportional to 129,969.70, 194,662.95 and 127,053.70

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Solution

The fourth proportional to 129,969.70, 194,662.95 and 127,053.70 is: 190,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,969.70 : 194,662.95 = 127,053.70 : x
  2. Step 2: Convert to fraction form
    129,969.70/194,662.95 = 127,053.70/x
  3. Step 3: Cross multiply
    129,969.70x = 194,662.95 × 127,053.70
  4. Step 4: Simplify right side
    129,969.70x = 24,732,648,050.42
  5. Step 5: Solve for x
    x = 24,732,648,050.42/129,969.70
  6. Step 6: Final answer
    x = 190,295.49

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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.