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Finding the Fourth Proportional to 228,619.26, 342,803.61 and 70,803.90

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Solution

The fourth proportional to 228,619.26, 342,803.61 and 70,803.90 is: 106,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,619.26 : 342,803.61 = 70,803.90 : x
  2. Step 2: Convert to fraction form
    228,619.26/342,803.61 = 70,803.90/x
  3. Step 3: Cross multiply
    228,619.26x = 342,803.61 × 70,803.90
  4. Step 4: Simplify right side
    228,619.26x = 24,271,832,522.08
  5. Step 5: Solve for x
    x = 24,271,832,522.08/228,619.26
  6. Step 6: Final answer
    x = 106,167.05

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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.