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Finding the Fourth Proportional to 75,387.54, 113,100.30 and 53,244.30

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Solution

The fourth proportional to 75,387.54, 113,100.30 and 53,244.30 is: 79,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,387.54 : 113,100.30 = 53,244.30 : x
  2. Step 2: Convert to fraction form
    75,387.54/113,100.30 = 53,244.30/x
  3. Step 3: Cross multiply
    75,387.54x = 113,100.30 × 53,244.30
  4. Step 4: Simplify right side
    75,387.54x = 6,021,946,303.29
  5. Step 5: Solve for x
    x = 6,021,946,303.29/75,387.54
  6. Step 6: Final answer
    x = 79,879.86

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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.