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Finding the Fourth Proportional to 74,166.80, 111,250.20 and 68,464.40

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Solution

The fourth proportional to 74,166.80, 111,250.20 and 68,464.40 is: 102,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,166.80 : 111,250.20 = 68,464.40 : x
  2. Step 2: Convert to fraction form
    74,166.80/111,250.20 = 68,464.40/x
  3. Step 3: Cross multiply
    74,166.80x = 111,250.20 × 68,464.40
  4. Step 4: Simplify right side
    74,166.80x = 7,616,678,192.88
  5. Step 5: Solve for x
    x = 7,616,678,192.88/74,166.80
  6. Step 6: Final answer
    x = 102,696.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.