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Finding the Fourth Proportional to 130,030.80, 194,614.20 and 94,390.80

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Solution

The fourth proportional to 130,030.80, 194,614.20 and 94,390.80 is: 141,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,030.80 : 194,614.20 = 94,390.80 : x
  2. Step 2: Convert to fraction form
    130,030.80/194,614.20 = 94,390.80/x
  3. Step 3: Cross multiply
    130,030.80x = 194,614.20 × 94,390.80
  4. Step 4: Simplify right side
    130,030.80x = 18,369,790,029.36
  5. Step 5: Solve for x
    x = 18,369,790,029.36/130,030.80
  6. Step 6: Final answer
    x = 141,272.61

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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.