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Finding the Fourth Proportional to 75,661.58, 104,389.44 and 42,950.54

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Solution

The fourth proportional to 75,661.58, 104,389.44 and 42,950.54 is: 59,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,661.58 : 104,389.44 = 42,950.54 : x
  2. Step 2: Convert to fraction form
    75,661.58/104,389.44 = 42,950.54/x
  3. Step 3: Cross multiply
    75,661.58x = 104,389.44 × 42,950.54
  4. Step 4: Simplify right side
    75,661.58x = 4,483,582,818.30
  5. Step 5: Solve for x
    x = 4,483,582,818.30/75,661.58
  6. Step 6: Final answer
    x = 59,258.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.