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Finding the Fourth Proportional to 88,710.36, 122,415.86 and 48,425.82

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Solution

The fourth proportional to 88,710.36, 122,415.86 and 48,425.82 is: 66,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.36 : 122,415.86 = 48,425.82 : x
  2. Step 2: Convert to fraction form
    88,710.36/122,415.86 = 48,425.82/x
  3. Step 3: Cross multiply
    88,710.36x = 122,415.86 × 48,425.82
  4. Step 4: Simplify right side
    88,710.36x = 5,928,088,401.51
  5. Step 5: Solve for x
    x = 5,928,088,401.51/88,710.36
  6. Step 6: Final answer
    x = 66,825.21

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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.