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Finding the Fourth Proportional to 78,899.40, 108,881.82 and 44,910.54

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Solution

The fourth proportional to 78,899.40, 108,881.82 and 44,910.54 is: 61,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.40 : 108,881.82 = 44,910.54 : x
  2. Step 2: Convert to fraction form
    78,899.40/108,881.82 = 44,910.54/x
  3. Step 3: Cross multiply
    78,899.40x = 108,881.82 × 44,910.54
  4. Step 4: Simplify right side
    78,899.40x = 4,889,941,332.38
  5. Step 5: Solve for x
    x = 4,889,941,332.38/78,899.40
  6. Step 6: Final answer
    x = 61,976.91

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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.