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Finding the Fourth Proportional to 57,362,026.80, 80,366,557.20 and 57,362,026.80

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Solution

The fourth proportional to 57,362,026.80, 80,366,557.20 and 57,362,026.80 is: 80,366,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,362,026.80 : 80,366,557.20 = 57,362,026.80 : x
  2. Step 2: Convert to fraction form
    57,362,026.80/80,366,557.20 = 57,362,026.80/x
  3. Step 3: Cross multiply
    57,362,026.80x = 80,366,557.20 × 57,362,026.80
  4. Step 4: Simplify right side
    57,362,026.80x = 4,609,988,607,930,133
  5. Step 5: Solve for x
    x = 4,609,988,607,930,133/57,362,026.80
  6. Step 6: Final answer
    x = 80,366,557.20

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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.