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Finding the Fourth Proportional to 116,390.18, 160,580.13 and 67,980.98

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Solution

The fourth proportional to 116,390.18, 160,580.13 and 67,980.98 is: 93,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,390.18 : 160,580.13 = 67,980.98 : x
  2. Step 2: Convert to fraction form
    116,390.18/160,580.13 = 67,980.98/x
  3. Step 3: Cross multiply
    116,390.18x = 160,580.13 × 67,980.98
  4. Step 4: Simplify right side
    116,390.18x = 10,916,394,605.93
  5. Step 5: Solve for x
    x = 10,916,394,605.93/116,390.18
  6. Step 6: Final answer
    x = 93,791.37

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1.5x scale

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.