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Finding the Fourth Proportional to 82,715,743.80, 124,073,615.70 and 82,715,743.80

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Solution

The fourth proportional to 82,715,743.80, 124,073,615.70 and 82,715,743.80 is: 124,073,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,715,743.80 : 124,073,615.70 = 82,715,743.80 : x
  2. Step 2: Convert to fraction form
    82,715,743.80/124,073,615.70 = 82,715,743.80/x
  3. Step 3: Cross multiply
    82,715,743.80x = 124,073,615.70 × 82,715,743.80
  4. Step 4: Simplify right side
    82,715,743.80x = 10,262,841,408,580,858
  5. Step 5: Solve for x
    x = 10,262,841,408,580,858/82,715,743.80
  6. Step 6: Final answer
    x = 124,073,615.70

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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.