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Finding the Fourth Proportional to 509,991.55, 765,097.38 and 155,034.16

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Solution

The fourth proportional to 509,991.55, 765,097.38 and 155,034.16 is: 232,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,991.55 : 765,097.38 = 155,034.16 : x
  2. Step 2: Convert to fraction form
    509,991.55/765,097.38 = 155,034.16/x
  3. Step 3: Cross multiply
    509,991.55x = 765,097.38 × 155,034.16
  4. Step 4: Simplify right side
    509,991.55x = 118,616,229,626.50
  5. Step 5: Solve for x
    x = 118,616,229,626.50/509,991.55
  6. Step 6: Final answer
    x = 232,584.70

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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.