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Finding the Fourth Proportional to 477,213.29, 715,803.52 and 122,230.38

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Solution

The fourth proportional to 477,213.29, 715,803.52 and 122,230.38 is: 183,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,213.29 : 715,803.52 = 122,230.38 : x
  2. Step 2: Convert to fraction form
    477,213.29/715,803.52 = 122,230.38/x
  3. Step 3: Cross multiply
    477,213.29x = 715,803.52 × 122,230.38
  4. Step 4: Simplify right side
    477,213.29x = 87,492,936,254.94
  5. Step 5: Solve for x
    x = 87,492,936,254.94/477,213.29
  6. Step 6: Final answer
    x = 183,341.37

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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.