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Finding the Fourth Proportional to 103,043.10, 143,949.30 and 103,043.10

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Solution

The fourth proportional to 103,043.10, 143,949.30 and 103,043.10 is: 143,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,043.10 : 143,949.30 = 103,043.10 : x
  2. Step 2: Convert to fraction form
    103,043.10/143,949.30 = 103,043.10/x
  3. Step 3: Cross multiply
    103,043.10x = 143,949.30 × 103,043.10
  4. Step 4: Simplify right side
    103,043.10x = 14,832,982,114.83
  5. Step 5: Solve for x
    x = 14,832,982,114.83/103,043.10
  6. Step 6: Final answer
    x = 143,949.30

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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.