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Finding the Fourth Proportional to 130,628.70, 195,651.45 and 107,300.70

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Solution

The fourth proportional to 130,628.70, 195,651.45 and 107,300.70 is: 160,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,628.70 : 195,651.45 = 107,300.70 : x
  2. Step 2: Convert to fraction form
    130,628.70/195,651.45 = 107,300.70/x
  3. Step 3: Cross multiply
    130,628.70x = 195,651.45 × 107,300.70
  4. Step 4: Simplify right side
    130,628.70x = 20,993,537,541.02
  5. Step 5: Solve for x
    x = 20,993,537,541.02/130,628.70
  6. Step 6: Final answer
    x = 160,711.52

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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.