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Finding the Fourth Proportional to 75,420.54, 113,131.08 and 25,501.08

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Solution

The fourth proportional to 75,420.54, 113,131.08 and 25,501.08 is: 38,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,420.54 : 113,131.08 = 25,501.08 : x
  2. Step 2: Convert to fraction form
    75,420.54/113,131.08 = 25,501.08/x
  3. Step 3: Cross multiply
    75,420.54x = 113,131.08 × 25,501.08
  4. Step 4: Simplify right side
    75,420.54x = 2,884,964,721.57
  5. Step 5: Solve for x
    x = 2,884,964,721.57/75,420.54
  6. Step 6: Final answer
    x = 38,251.71

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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.