Home / 209,526.86-289,096.68-123,489.26

Finding the Fourth Proportional to 209,526.86, 289,096.68 and 123,489.26

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Solution

The fourth proportional to 209,526.86, 289,096.68 and 123,489.26 is: 170,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,526.86 : 289,096.68 = 123,489.26 : x
  2. Step 2: Convert to fraction form
    209,526.86/289,096.68 = 123,489.26/x
  3. Step 3: Cross multiply
    209,526.86x = 289,096.68 × 123,489.26
  4. Step 4: Simplify right side
    209,526.86x = 35,700,335,081.66
  5. Step 5: Solve for x
    x = 35,700,335,081.66/209,526.86
  6. Step 6: Final answer
    x = 170,385.48

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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.