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Finding the Fourth Proportional to 82,175,999.60, 123,263,999.40 and 41,865,215.60

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Solution

The fourth proportional to 82,175,999.60, 123,263,999.40 and 41,865,215.60 is: 62,797,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,175,999.60 : 123,263,999.40 = 41,865,215.60 : x
  2. Step 2: Convert to fraction form
    82,175,999.60/123,263,999.40 = 41,865,215.60/x
  3. Step 3: Cross multiply
    82,175,999.60x = 123,263,999.40 × 41,865,215.60
  4. Step 4: Simplify right side
    82,175,999.60x = 5,160,473,910,599,271
  5. Step 5: Solve for x
    x = 5,160,473,910,599,271/82,175,999.60
  6. Step 6: Final answer
    x = 62,797,823.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.