Home / 209,579.64-289,513.98-186,911.37

Finding the Fourth Proportional to 209,579.64, 289,513.98 and 186,911.37

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Solution

The fourth proportional to 209,579.64, 289,513.98 and 186,911.37 is: 258,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.64 : 289,513.98 = 186,911.37 : x
  2. Step 2: Convert to fraction form
    209,579.64/289,513.98 = 186,911.37/x
  3. Step 3: Cross multiply
    209,579.64x = 289,513.98 × 186,911.37
  4. Step 4: Simplify right side
    209,579.64x = 54,113,454,635.95
  5. Step 5: Solve for x
    x = 54,113,454,635.95/209,579.64
  6. Step 6: Final answer
    x = 258,199.96

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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.