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Finding the Fourth Proportional to 236,926.50, 355,451.34 and 70,714.50

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Solution

The fourth proportional to 236,926.50, 355,451.34 and 70,714.50 is: 106,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,926.50 : 355,451.34 = 70,714.50 : x
  2. Step 2: Convert to fraction form
    236,926.50/355,451.34 = 70,714.50/x
  3. Step 3: Cross multiply
    236,926.50x = 355,451.34 × 70,714.50
  4. Step 4: Simplify right side
    236,926.50x = 25,135,563,782.43
  5. Step 5: Solve for x
    x = 25,135,563,782.43/236,926.50
  6. Step 6: Final answer
    x = 106,090.13

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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.