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Finding the Third Proportional to 74,313,288 and 155,402,442

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Solution

The third proportional to 74,313,288 and 155,402,442 is: 324,974,437.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,313,288 : 155,402,442 = 155,402,442 : x
  2. Step 2: Convert to fraction form
    74,313,288/155,402,442 = 155,402,442/x
  3. Step 3: Cross multiply
    74,313,288x = 155,402,442 × 155,402,442
  4. Step 4: Simplify right side
    74,313,288x = 24,149,918,979,563,364
  5. Step 5: Solve for x
    x = 24,149,918,979,563,364/74,313,288
  6. Step 6: Final answer
    x = 324,974,437.67

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.