Home / 199,681.32-299,421.82-66,514.76

Finding the Fourth Proportional to 199,681.32, 299,421.82 and 66,514.76

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Solution

The fourth proportional to 199,681.32, 299,421.82 and 66,514.76 is: 99,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,681.32 : 299,421.82 = 66,514.76 : x
  2. Step 2: Convert to fraction form
    199,681.32/299,421.82 = 66,514.76/x
  3. Step 3: Cross multiply
    199,681.32x = 299,421.82 × 66,514.76
  4. Step 4: Simplify right side
    199,681.32x = 19,915,970,496.06
  5. Step 5: Solve for x
    x = 19,915,970,496.06/199,681.32
  6. Step 6: Final answer
    x = 99,738.78

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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.