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Finding the Fourth Proportional to 144,486.90, 202,419.90 and 144,486.90

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Solution

The fourth proportional to 144,486.90, 202,419.90 and 144,486.90 is: 202,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,486.90 : 202,419.90 = 144,486.90 : x
  2. Step 2: Convert to fraction form
    144,486.90/202,419.90 = 144,486.90/x
  3. Step 3: Cross multiply
    144,486.90x = 202,419.90 × 144,486.90
  4. Step 4: Simplify right side
    144,486.90x = 29,247,023,849.31
  5. Step 5: Solve for x
    x = 29,247,023,849.31/144,486.90
  6. Step 6: Final answer
    x = 202,419.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.