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Finding the Fourth Proportional to 76,443,912.55, 107,323,808.45 and 76,443,912.55

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Solution

The fourth proportional to 76,443,912.55, 107,323,808.45 and 76,443,912.55 is: 107,323,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,443,912.55 : 107,323,808.45 = 76,443,912.55 : x
  2. Step 2: Convert to fraction form
    76,443,912.55/107,323,808.45 = 76,443,912.55/x
  3. Step 3: Cross multiply
    76,443,912.55x = 107,323,808.45 × 76,443,912.55
  4. Step 4: Simplify right side
    76,443,912.55x = 8,204,251,827,684,751
  5. Step 5: Solve for x
    x = 8,204,251,827,684,751/76,443,912.55
  6. Step 6: Final answer
    x = 107,323,808.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.