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Finding the Fourth Proportional to 165,010.71, 247,072.60 and 104,712.72

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Solution

The fourth proportional to 165,010.71, 247,072.60 and 104,712.72 is: 156,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,010.71 : 247,072.60 = 104,712.72 : x
  2. Step 2: Convert to fraction form
    165,010.71/247,072.60 = 104,712.72/x
  3. Step 3: Cross multiply
    165,010.71x = 247,072.60 × 104,712.72
  4. Step 4: Simplify right side
    165,010.71x = 25,871,645,567.02
  5. Step 5: Solve for x
    x = 25,871,645,567.02/165,010.71
  6. Step 6: Final answer
    x = 156,787.67

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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.