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Finding the Fourth Proportional to 227,813.10, 342,000.45 and 143,573.10

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Solution

The fourth proportional to 227,813.10, 342,000.45 and 143,573.10 is: 215,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,813.10 : 342,000.45 = 143,573.10 : x
  2. Step 2: Convert to fraction form
    227,813.10/342,000.45 = 143,573.10/x
  3. Step 3: Cross multiply
    227,813.10x = 342,000.45 × 143,573.10
  4. Step 4: Simplify right side
    227,813.10x = 49,102,064,807.90
  5. Step 5: Solve for x
    x = 49,102,064,807.90/227,813.10
  6. Step 6: Final answer
    x = 215,536.62

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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.