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Finding the Fourth Proportional to 88,487, 122,112.06 and 48,743

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Solution

The fourth proportional to 88,487, 122,112.06 and 48,743 is: 67,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,487 : 122,112.06 = 48,743 : x
  2. Step 2: Convert to fraction form
    88,487/122,112.06 = 48,743/x
  3. Step 3: Cross multiply
    88,487x = 122,112.06 × 48,743
  4. Step 4: Simplify right side
    88,487x = 5,952,108,140.58
  5. Step 5: Solve for x
    x = 5,952,108,140.58/88,487
  6. Step 6: Final answer
    x = 67,265.34

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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.