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Finding the Fourth Proportional to 121,162.84, 181,751.52 and 38,056.84

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Solution

The fourth proportional to 121,162.84, 181,751.52 and 38,056.84 is: 57,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,162.84 : 181,751.52 = 38,056.84 : x
  2. Step 2: Convert to fraction form
    121,162.84/181,751.52 = 38,056.84/x
  3. Step 3: Cross multiply
    121,162.84x = 181,751.52 × 38,056.84
  4. Step 4: Simplify right side
    121,162.84x = 6,916,888,516.40
  5. Step 5: Solve for x
    x = 6,916,888,516.40/121,162.84
  6. Step 6: Final answer
    x = 57,087.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.