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Finding the Fourth Proportional to 200,486.16, 276,039.72 and 170,211.60

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Solution

The fourth proportional to 200,486.16, 276,039.72 and 170,211.60 is: 234,356.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,486.16 : 276,039.72 = 170,211.60 : x
  2. Step 2: Convert to fraction form
    200,486.16/276,039.72 = 170,211.60/x
  3. Step 3: Cross multiply
    200,486.16x = 276,039.72 × 170,211.60
  4. Step 4: Simplify right side
    200,486.16x = 46,985,162,404.75
  5. Step 5: Solve for x
    x = 46,985,162,404.75/200,486.16
  6. Step 6: Final answer
    x = 234,356.14

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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.