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Finding the Fourth Proportional to 510,072.88, 765,152.15 and 155,089.97

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Solution

The fourth proportional to 510,072.88, 765,152.15 and 155,089.97 is: 232,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,072.88 : 765,152.15 = 155,089.97 : x
  2. Step 2: Convert to fraction form
    510,072.88/765,152.15 = 155,089.97/x
  3. Step 3: Cross multiply
    510,072.88x = 765,152.15 × 155,089.97
  4. Step 4: Simplify right side
    510,072.88x = 118,667,425,126.37
  5. Step 5: Solve for x
    x = 118,667,425,126.37/510,072.88
  6. Step 6: Final answer
    x = 232,647.98

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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.