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Finding the Fourth Proportional to 144,343.59, 216,367.74 and 73,134.30

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Solution

The fourth proportional to 144,343.59, 216,367.74 and 73,134.30 is: 109,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,343.59 : 216,367.74 = 73,134.30 : x
  2. Step 2: Convert to fraction form
    144,343.59/216,367.74 = 73,134.30/x
  3. Step 3: Cross multiply
    144,343.59x = 216,367.74 × 73,134.30
  4. Step 4: Simplify right side
    144,343.59x = 15,823,903,207.48
  5. Step 5: Solve for x
    x = 15,823,903,207.48/144,343.59
  6. Step 6: Final answer
    x = 109,626.64

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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.