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Finding the Fourth Proportional to 88,535, 122,178.30 and 48,791

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Solution

The fourth proportional to 88,535, 122,178.30 and 48,791 is: 67,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,535 : 122,178.30 = 48,791 : x
  2. Step 2: Convert to fraction form
    88,535/122,178.30 = 48,791/x
  3. Step 3: Cross multiply
    88,535x = 122,178.30 × 48,791
  4. Step 4: Simplify right side
    88,535x = 5,961,201,557.28
  5. Step 5: Solve for x
    x = 5,961,201,557.28/88,535
  6. Step 6: Final answer
    x = 67,331.58

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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.