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Finding the Fourth Proportional to 236,536.94, 354,962.10 and 129,995.30

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Solution

The fourth proportional to 236,536.94, 354,962.10 and 129,995.30 is: 195,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,536.94 : 354,962.10 = 129,995.30 : x
  2. Step 2: Convert to fraction form
    236,536.94/354,962.10 = 129,995.30/x
  3. Step 3: Cross multiply
    236,536.94x = 354,962.10 × 129,995.30
  4. Step 4: Simplify right side
    236,536.94x = 46,143,404,678.13
  5. Step 5: Solve for x
    x = 46,143,404,678.13/236,536.94
  6. Step 6: Final answer
    x = 195,079.06

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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.