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Finding the Fourth Proportional to 88,413, 122,009.94 and 48,669

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Solution

The fourth proportional to 88,413, 122,009.94 and 48,669 is: 67,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,413 : 122,009.94 = 48,669 : x
  2. Step 2: Convert to fraction form
    88,413/122,009.94 = 48,669/x
  3. Step 3: Cross multiply
    88,413x = 122,009.94 × 48,669
  4. Step 4: Simplify right side
    88,413x = 5,938,101,769.86
  5. Step 5: Solve for x
    x = 5,938,101,769.86/88,413
  6. Step 6: Final answer
    x = 67,163.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.