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Finding the Fourth Proportional to 407,373.22, 611,066.70 and 141,141.58

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Solution

The fourth proportional to 407,373.22, 611,066.70 and 141,141.58 is: 211,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,373.22 : 611,066.70 = 141,141.58 : x
  2. Step 2: Convert to fraction form
    407,373.22/611,066.70 = 141,141.58/x
  3. Step 3: Cross multiply
    407,373.22x = 611,066.70 × 141,141.58
  4. Step 4: Simplify right side
    407,373.22x = 86,246,919,523.39
  5. Step 5: Solve for x
    x = 86,246,919,523.39/407,373.22
  6. Step 6: Final answer
    x = 211,714.75

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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.