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Finding the Fourth Proportional to 114,488.70, 157,998.52 and 66,734.34

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Solution

The fourth proportional to 114,488.70, 157,998.52 and 66,734.34 is: 92,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,488.70 : 157,998.52 = 66,734.34 : x
  2. Step 2: Convert to fraction form
    114,488.70/157,998.52 = 66,734.34/x
  3. Step 3: Cross multiply
    114,488.70x = 157,998.52 × 66,734.34
  4. Step 4: Simplify right side
    114,488.70x = 10,543,926,953.18
  5. Step 5: Solve for x
    x = 10,543,926,953.18/114,488.70
  6. Step 6: Final answer
    x = 92,095.79

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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.