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Finding the Fourth Proportional to 189,355.64, 262,415.45 and 186,683

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Solution

The fourth proportional to 189,355.64, 262,415.45 and 186,683 is: 258,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,355.64 : 262,415.45 = 186,683 : x
  2. Step 2: Convert to fraction form
    189,355.64/262,415.45 = 186,683/x
  3. Step 3: Cross multiply
    189,355.64x = 262,415.45 × 186,683
  4. Step 4: Simplify right side
    189,355.64x = 48,988,503,452.35
  5. Step 5: Solve for x
    x = 48,988,503,452.35/189,355.64
  6. Step 6: Final answer
    x = 258,711.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.