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Finding the Fourth Proportional to 132,978,415.92, 199,590,239.92 and 67,445,546.80

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Solution

The fourth proportional to 132,978,415.92, 199,590,239.92 and 67,445,546.80 is: 101,230,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,978,415.92 : 199,590,239.92 = 67,445,546.80 : x
  2. Step 2: Convert to fraction form
    132,978,415.92/199,590,239.92 = 67,445,546.80/x
  3. Step 3: Cross multiply
    132,978,415.92x = 199,590,239.92 × 67,445,546.80
  4. Step 4: Simplify right side
    132,978,415.92x = 13,461,472,867,347,586
  5. Step 5: Solve for x
    x = 13,461,472,867,347,586/132,978,415.92
  6. Step 6: Final answer
    x = 101,230,510.04

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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.