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Finding the Fourth Proportional to 114,950.61, 158,628.92 and 66,545.82

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Solution

The fourth proportional to 114,950.61, 158,628.92 and 66,545.82 is: 91,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,950.61 : 158,628.92 = 66,545.82 : x
  2. Step 2: Convert to fraction form
    114,950.61/158,628.92 = 66,545.82/x
  3. Step 3: Cross multiply
    114,950.61x = 158,628.92 × 66,545.82
  4. Step 4: Simplify right side
    114,950.61x = 10,556,091,224.39
  5. Step 5: Solve for x
    x = 10,556,091,224.39/114,950.61
  6. Step 6: Final answer
    x = 91,831.54

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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.