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Finding the Fourth Proportional to 147,974,974.40, 207,505,086.40 and 147,974,974.40

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Solution

The fourth proportional to 147,974,974.40, 207,505,086.40 and 147,974,974.40 is: 207,505,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,974,974.40 : 207,505,086.40 = 147,974,974.40 : x
  2. Step 2: Convert to fraction form
    147,974,974.40/207,505,086.40 = 147,974,974.40/x
  3. Step 3: Cross multiply
    147,974,974.40x = 207,505,086.40 × 147,974,974.40
  4. Step 4: Simplify right side
    147,974,974.40x = 30,705,559,847,909,792
  5. Step 5: Solve for x
    x = 30,705,559,847,909,792/147,974,974.40
  6. Step 6: Final answer
    x = 207,505,086.40

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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.