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Finding the Third Proportional to 67,918,807.13 and 105,913,855.69

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Solution

The third proportional to 67,918,807.13 and 105,913,855.69 is: 165,164,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,918,807.13 : 105,913,855.69 = 105,913,855.69 : x
  2. Step 2: Convert to fraction form
    67,918,807.13/105,913,855.69 = 105,913,855.69/x
  3. Step 3: Cross multiply
    67,918,807.13x = 105,913,855.69 × 105,913,855.69
  4. Step 4: Simplify right side
    67,918,807.13x = 11,217,744,826,592,576
  5. Step 5: Solve for x
    x = 11,217,744,826,592,576/67,918,807.13
  6. Step 6: Final answer
    x = 165,164,043.68

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.