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Finding the Third Proportional to 84,339,528 and 130,331,780

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Solution

The third proportional to 84,339,528 and 130,331,780 is: 201,404,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,339,528 : 130,331,780 = 130,331,780 : x
  2. Step 2: Convert to fraction form
    84,339,528/130,331,780 = 130,331,780/x
  3. Step 3: Cross multiply
    84,339,528x = 130,331,780 × 130,331,780
  4. Step 4: Simplify right side
    84,339,528x = 16,986,372,877,968,400
  5. Step 5: Solve for x
    x = 16,986,372,877,968,400/84,339,528
  6. Step 6: Final answer
    x = 201,404,647.15

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.