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Finding the Fourth Proportional to 76,883.82, 106,081.58 and 46,668.40

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Solution

The fourth proportional to 76,883.82, 106,081.58 and 46,668.40 is: 64,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,883.82 : 106,081.58 = 46,668.40 : x
  2. Step 2: Convert to fraction form
    76,883.82/106,081.58 = 46,668.40/x
  3. Step 3: Cross multiply
    76,883.82x = 106,081.58 × 46,668.40
  4. Step 4: Simplify right side
    76,883.82x = 4,950,657,608.07
  5. Step 5: Solve for x
    x = 4,950,657,608.07/76,883.82
  6. Step 6: Final answer
    x = 64,391.41

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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.