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Finding the Fourth Proportional to 391,028.50, 586,567.59 and 110,567.62

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Solution

The fourth proportional to 391,028.50, 586,567.59 and 110,567.62 is: 165,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,028.50 : 586,567.59 = 110,567.62 : x
  2. Step 2: Convert to fraction form
    391,028.50/586,567.59 = 110,567.62/x
  3. Step 3: Cross multiply
    391,028.50x = 586,567.59 × 110,567.62
  4. Step 4: Simplify right side
    391,028.50x = 64,855,382,395.44
  5. Step 5: Solve for x
    x = 64,855,382,395.44/391,028.50
  6. Step 6: Final answer
    x = 165,858.45

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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.