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Finding the Fourth Proportional to 96,990.30, 133,934.58 and 73,075.50

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Solution

The fourth proportional to 96,990.30, 133,934.58 and 73,075.50 is: 100,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,990.30 : 133,934.58 = 73,075.50 : x
  2. Step 2: Convert to fraction form
    96,990.30/133,934.58 = 73,075.50/x
  3. Step 3: Cross multiply
    96,990.30x = 133,934.58 × 73,075.50
  4. Step 4: Simplify right side
    96,990.30x = 9,787,336,400.79
  5. Step 5: Solve for x
    x = 9,787,336,400.79/96,990.30
  6. Step 6: Final answer
    x = 100,910.47

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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.