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Finding the Fourth Proportional to 84,117.45, 116,078.87 and 46,391.70

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Solution

The fourth proportional to 84,117.45, 116,078.87 and 46,391.70 is: 64,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.45 : 116,078.87 = 46,391.70 : x
  2. Step 2: Convert to fraction form
    84,117.45/116,078.87 = 46,391.70/x
  3. Step 3: Cross multiply
    84,117.45x = 116,078.87 × 46,391.70
  4. Step 4: Simplify right side
    84,117.45x = 5,385,096,113.38
  5. Step 5: Solve for x
    x = 5,385,096,113.38/84,117.45
  6. Step 6: Final answer
    x = 64,018.78

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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.