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Finding the Fourth Proportional to 259,516.21, 358,131.88 and 144,788.03

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Solution

The fourth proportional to 259,516.21, 358,131.88 and 144,788.03 is: 199,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,516.21 : 358,131.88 = 144,788.03 : x
  2. Step 2: Convert to fraction form
    259,516.21/358,131.88 = 144,788.03/x
  3. Step 3: Cross multiply
    259,516.21x = 358,131.88 × 144,788.03
  4. Step 4: Simplify right side
    259,516.21x = 51,853,209,385.40
  5. Step 5: Solve for x
    x = 51,853,209,385.40/259,516.21
  6. Step 6: Final answer
    x = 199,807.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.