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Finding the Fourth Proportional to 116,155, 160,269.19 and 68,390.92

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Solution

The fourth proportional to 116,155, 160,269.19 and 68,390.92 is: 94,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,155 : 160,269.19 = 68,390.92 : x
  2. Step 2: Convert to fraction form
    116,155/160,269.19 = 68,390.92/x
  3. Step 3: Cross multiply
    116,155x = 160,269.19 × 68,390.92
  4. Step 4: Simplify right side
    116,155x = 10,960,957,351.75
  5. Step 5: Solve for x
    x = 10,960,957,351.75/116,155
  6. Step 6: Final answer
    x = 94,364.92

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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.