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Finding the Fourth Proportional to 368,483.89, 552,838.65 and 188,696.61

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Solution

The fourth proportional to 368,483.89, 552,838.65 and 188,696.61 is: 283,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,483.89 : 552,838.65 = 188,696.61 : x
  2. Step 2: Convert to fraction form
    368,483.89/552,838.65 = 188,696.61/x
  3. Step 3: Cross multiply
    368,483.89x = 552,838.65 × 188,696.61
  4. Step 4: Simplify right side
    368,483.89x = 104,318,779,131.98
  5. Step 5: Solve for x
    x = 104,318,779,131.98/368,483.89
  6. Step 6: Final answer
    x = 283,102.69

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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.