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Finding the Fourth Proportional to 40,842,912.70, 57,323,566.85 and 40,842,912.70

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Solution

The fourth proportional to 40,842,912.70, 57,323,566.85 and 40,842,912.70 is: 57,323,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,842,912.70 : 57,323,566.85 = 40,842,912.70 : x
  2. Step 2: Convert to fraction form
    40,842,912.70/57,323,566.85 = 40,842,912.70/x
  3. Step 3: Cross multiply
    40,842,912.70x = 57,323,566.85 × 40,842,912.70
  4. Step 4: Simplify right side
    40,842,912.70x = 2,341,261,436,507,164
  5. Step 5: Solve for x
    x = 2,341,261,436,507,164/40,842,912.70
  6. Step 6: Final answer
    x = 57,323,566.85

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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.