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Finding the Fourth Proportional to 74,008.40, 111,012.60 and 44,070.80

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Solution

The fourth proportional to 74,008.40, 111,012.60 and 44,070.80 is: 66,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.40 : 111,012.60 = 44,070.80 : x
  2. Step 2: Convert to fraction form
    74,008.40/111,012.60 = 44,070.80/x
  3. Step 3: Cross multiply
    74,008.40x = 111,012.60 × 44,070.80
  4. Step 4: Simplify right side
    74,008.40x = 4,892,414,092.08
  5. Step 5: Solve for x
    x = 4,892,414,092.08/74,008.40
  6. Step 6: Final answer
    x = 66,106.20

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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.