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Finding the Fourth Proportional to 375,860.25, 563,779.44 and 139,197.69

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Solution

The fourth proportional to 375,860.25, 563,779.44 and 139,197.69 is: 208,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,860.25 : 563,779.44 = 139,197.69 : x
  2. Step 2: Convert to fraction form
    375,860.25/563,779.44 = 139,197.69/x
  3. Step 3: Cross multiply
    375,860.25x = 563,779.44 × 139,197.69
  4. Step 4: Simplify right side
    375,860.25x = 78,476,795,717.49
  5. Step 5: Solve for x
    x = 78,476,795,717.49/375,860.25
  6. Step 6: Final answer
    x = 208,792.49

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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.