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Finding the Fourth Proportional to 186,989.40, 280,484.10 and 60,629.40

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Solution

The fourth proportional to 186,989.40, 280,484.10 and 60,629.40 is: 90,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,989.40 : 280,484.10 = 60,629.40 : x
  2. Step 2: Convert to fraction form
    186,989.40/280,484.10 = 60,629.40/x
  3. Step 3: Cross multiply
    186,989.40x = 280,484.10 × 60,629.40
  4. Step 4: Simplify right side
    186,989.40x = 17,005,582,692.54
  5. Step 5: Solve for x
    x = 17,005,582,692.54/186,989.40
  6. Step 6: Final answer
    x = 90,944.10

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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.