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Finding the Fourth Proportional to 116,620.80, 160,934.40 and 63,628.80

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Solution

The fourth proportional to 116,620.80, 160,934.40 and 63,628.80 is: 87,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,620.80 : 160,934.40 = 63,628.80 : x
  2. Step 2: Convert to fraction form
    116,620.80/160,934.40 = 63,628.80/x
  3. Step 3: Cross multiply
    116,620.80x = 160,934.40 × 63,628.80
  4. Step 4: Simplify right side
    116,620.80x = 10,240,062,750.72
  5. Step 5: Solve for x
    x = 10,240,062,750.72/116,620.80
  6. Step 6: Final answer
    x = 87,806.49

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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.