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Finding the Fourth Proportional to 122,950.84, 169,670.28 and 69,235.72

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Solution

The fourth proportional to 122,950.84, 169,670.28 and 69,235.72 is: 95,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,950.84 : 169,670.28 = 69,235.72 : x
  2. Step 2: Convert to fraction form
    122,950.84/169,670.28 = 69,235.72/x
  3. Step 3: Cross multiply
    122,950.84x = 169,670.28 × 69,235.72
  4. Step 4: Simplify right side
    122,950.84x = 11,747,243,998.40
  5. Step 5: Solve for x
    x = 11,747,243,998.40/122,950.84
  6. Step 6: Final answer
    x = 95,544.24

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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.