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Finding the Fourth Proportional to 83,643.30, 125,464.95 and 55,601.10

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Solution

The fourth proportional to 83,643.30, 125,464.95 and 55,601.10 is: 83,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,643.30 : 125,464.95 = 55,601.10 : x
  2. Step 2: Convert to fraction form
    83,643.30/125,464.95 = 55,601.10/x
  3. Step 3: Cross multiply
    83,643.30x = 125,464.95 × 55,601.10
  4. Step 4: Simplify right side
    83,643.30x = 6,975,989,231.45
  5. Step 5: Solve for x
    x = 6,975,989,231.45/83,643.30
  6. Step 6: Final answer
    x = 83,401.65

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Similar ratio
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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.