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Finding the Third Proportional to 70,928,144 and 153,172,960

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Solution

The third proportional to 70,928,144 and 153,172,960 is: 330,784,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928,144 : 153,172,960 = 153,172,960 : x
  2. Step 2: Convert to fraction form
    70,928,144/153,172,960 = 153,172,960/x
  3. Step 3: Cross multiply
    70,928,144x = 153,172,960 × 153,172,960
  4. Step 4: Simplify right side
    70,928,144x = 23,461,955,675,161,600
  5. Step 5: Solve for x
    x = 23,461,955,675,161,600/70,928,144
  6. Step 6: Final answer
    x = 330,784,852.84

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.