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Finding the Fourth Proportional to 45,791,842.20, 64,278,640.20 and 45,791,842.20

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Solution

The fourth proportional to 45,791,842.20, 64,278,640.20 and 45,791,842.20 is: 64,278,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,791,842.20 : 64,278,640.20 = 45,791,842.20 : x
  2. Step 2: Convert to fraction form
    45,791,842.20/64,278,640.20 = 45,791,842.20/x
  3. Step 3: Cross multiply
    45,791,842.20x = 64,278,640.20 × 45,791,842.20
  4. Step 4: Simplify right side
    45,791,842.20x = 2,943,437,348,868,977
  5. Step 5: Solve for x
    x = 2,943,437,348,868,977/45,791,842.20
  6. Step 6: Final answer
    x = 64,278,640.20

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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.