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Finding the Fourth Proportional to 130,061.80, 194,946.90 and 73,928.80

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Solution

The fourth proportional to 130,061.80, 194,946.90 and 73,928.80 is: 110,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,061.80 : 194,946.90 = 73,928.80 : x
  2. Step 2: Convert to fraction form
    130,061.80/194,946.90 = 73,928.80/x
  3. Step 3: Cross multiply
    130,061.80x = 194,946.90 × 73,928.80
  4. Step 4: Simplify right side
    130,061.80x = 14,412,190,380.72
  5. Step 5: Solve for x
    x = 14,412,190,380.72/130,061.80
  6. Step 6: Final answer
    x = 110,810.33

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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.