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Finding the Fourth Proportional to 210,418.66, 290,387.19 and 114,926.14

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Solution

The fourth proportional to 210,418.66, 290,387.19 and 114,926.14 is: 158,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,418.66 : 290,387.19 = 114,926.14 : x
  2. Step 2: Convert to fraction form
    210,418.66/290,387.19 = 114,926.14/x
  3. Step 3: Cross multiply
    210,418.66x = 290,387.19 × 114,926.14
  4. Step 4: Simplify right side
    210,418.66x = 33,373,078,852.15
  5. Step 5: Solve for x
    x = 33,373,078,852.15/210,418.66
  6. Step 6: Final answer
    x = 158,603.23

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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.