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Finding the Third Proportional to 142,235,972 and 310,315,570

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Solution

The third proportional to 142,235,972 and 310,315,570 is: 677,014,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,235,972 : 310,315,570 = 310,315,570 : x
  2. Step 2: Convert to fraction form
    142,235,972/310,315,570 = 310,315,570/x
  3. Step 3: Cross multiply
    142,235,972x = 310,315,570 × 310,315,570
  4. Step 4: Simplify right side
    142,235,972x = 96,295,752,984,424,896
  5. Step 5: Solve for x
    x = 96,295,752,984,424,896/142,235,972
  6. Step 6: Final answer
    x = 677,014,060.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.