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Finding the Fourth Proportional to 364,131.88, 546,079.68 and 139,480.36

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Solution

The fourth proportional to 364,131.88, 546,079.68 and 139,480.36 is: 209,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,131.88 : 546,079.68 = 139,480.36 : x
  2. Step 2: Convert to fraction form
    364,131.88/546,079.68 = 139,480.36/x
  3. Step 3: Cross multiply
    364,131.88x = 546,079.68 × 139,480.36
  4. Step 4: Simplify right side
    364,131.88x = 76,167,390,355.08
  5. Step 5: Solve for x
    x = 76,167,390,355.08/364,131.88
  6. Step 6: Final answer
    x = 209,175.29

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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.