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Finding the Fourth Proportional to 318,312, 439,292.16 and 184,176

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Solution

The fourth proportional to 318,312, 439,292.16 and 184,176 is: 254,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,312 : 439,292.16 = 184,176 : x
  2. Step 2: Convert to fraction form
    318,312/439,292.16 = 184,176/x
  3. Step 3: Cross multiply
    318,312x = 439,292.16 × 184,176
  4. Step 4: Simplify right side
    318,312x = 80,907,072,860.16
  5. Step 5: Solve for x
    x = 80,907,072,860.16/318,312
  6. Step 6: Final answer
    x = 254,175.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.