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Finding the Fourth Proportional to 510,412.51, 765,560.43 and 136,464.67

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Solution

The fourth proportional to 510,412.51, 765,560.43 and 136,464.67 is: 204,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,412.51 : 765,560.43 = 136,464.67 : x
  2. Step 2: Convert to fraction form
    510,412.51/765,560.43 = 136,464.67/x
  3. Step 3: Cross multiply
    510,412.51x = 765,560.43 × 136,464.67
  4. Step 4: Simplify right side
    510,412.51x = 104,471,951,445.01
  5. Step 5: Solve for x
    x = 104,471,951,445.01/510,412.51
  6. Step 6: Final answer
    x = 204,681.41

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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.