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Finding the Fourth Proportional to 229,253.70, 343,880.55 and 71,480.90

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Solution

The fourth proportional to 229,253.70, 343,880.55 and 71,480.90 is: 107,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,253.70 : 343,880.55 = 71,480.90 : x
  2. Step 2: Convert to fraction form
    229,253.70/343,880.55 = 71,480.90/x
  3. Step 3: Cross multiply
    229,253.70x = 343,880.55 × 71,480.90
  4. Step 4: Simplify right side
    229,253.70x = 24,580,891,206.50
  5. Step 5: Solve for x
    x = 24,580,891,206.50/229,253.70
  6. Step 6: Final answer
    x = 107,221.35

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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.