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Finding the Fourth Proportional to 88,192.46, 121,699.32 and 49,955.87

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Solution

The fourth proportional to 88,192.46, 121,699.32 and 49,955.87 is: 68,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,192.46 : 121,699.32 = 49,955.87 : x
  2. Step 2: Convert to fraction form
    88,192.46/121,699.32 = 49,955.87/x
  3. Step 3: Cross multiply
    88,192.46x = 121,699.32 × 49,955.87
  4. Step 4: Simplify right side
    88,192.46x = 6,079,595,409.01
  5. Step 5: Solve for x
    x = 6,079,595,409.01/88,192.46
  6. Step 6: Final answer
    x = 68,935.55

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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.