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Finding the Third Proportional to 45,078.19 and 70,075.13

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Solution

The third proportional to 45,078.19 and 70,075.13 is: 108,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,078.19 : 70,075.13 = 70,075.13 : x
  2. Step 2: Convert to fraction form
    45,078.19/70,075.13 = 70,075.13/x
  3. Step 3: Cross multiply
    45,078.19x = 70,075.13 × 70,075.13
  4. Step 4: Simplify right side
    45,078.19x = 4,910,523,143.77
  5. Step 5: Solve for x
    x = 4,910,523,143.77/45,078.19
  6. Step 6: Final answer
    x = 108,933.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.