Home / 261,064.22-391,653.74-83,589.17

Finding the Fourth Proportional to 261,064.22, 391,653.74 and 83,589.17

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Solution

The fourth proportional to 261,064.22, 391,653.74 and 83,589.17 is: 125,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,064.22 : 391,653.74 = 83,589.17 : x
  2. Step 2: Convert to fraction form
    261,064.22/391,653.74 = 83,589.17/x
  3. Step 3: Cross multiply
    261,064.22x = 391,653.74 × 83,589.17
  4. Step 4: Simplify right side
    261,064.22x = 32,738,012,242.10
  5. Step 5: Solve for x
    x = 32,738,012,242.10/261,064.22
  6. Step 6: Final answer
    x = 125,402.14

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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.