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Finding the Fourth Proportional to 194,789.70, 292,184.55 and 70,085.70

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Solution

The fourth proportional to 194,789.70, 292,184.55 and 70,085.70 is: 105,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,789.70 : 292,184.55 = 70,085.70 : x
  2. Step 2: Convert to fraction form
    194,789.70/292,184.55 = 70,085.70/x
  3. Step 3: Cross multiply
    194,789.70x = 292,184.55 × 70,085.70
  4. Step 4: Simplify right side
    194,789.70x = 20,477,958,715.94
  5. Step 5: Solve for x
    x = 20,477,958,715.94/194,789.70
  6. Step 6: Final answer
    x = 105,128.55

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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.