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Finding the Fourth Proportional to 74,051.20, 110,979.60 and 29,641.60

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Solution

The fourth proportional to 74,051.20, 110,979.60 and 29,641.60 is: 44,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,051.20 : 110,979.60 = 29,641.60 : x
  2. Step 2: Convert to fraction form
    74,051.20/110,979.60 = 29,641.60/x
  3. Step 3: Cross multiply
    74,051.20x = 110,979.60 × 29,641.60
  4. Step 4: Simplify right side
    74,051.20x = 3,289,612,911.36
  5. Step 5: Solve for x
    x = 3,289,612,911.36/74,051.20
  6. Step 6: Final answer
    x = 44,423.49

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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.