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Finding the Fourth Proportional to 124,632.54, 171,986.40 and 68,032.98

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Solution

The fourth proportional to 124,632.54, 171,986.40 and 68,032.98 is: 93,881.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,632.54 : 171,986.40 = 68,032.98 : x
  2. Step 2: Convert to fraction form
    124,632.54/171,986.40 = 68,032.98/x
  3. Step 3: Cross multiply
    124,632.54x = 171,986.40 × 68,032.98
  4. Step 4: Simplify right side
    124,632.54x = 11,700,747,311.47
  5. Step 5: Solve for x
    x = 11,700,747,311.47/124,632.54
  6. Step 6: Final answer
    x = 93,881.96

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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.