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Finding the Fourth Proportional to 228,086.40, 342,129.60 and 59,606.40

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Solution

The fourth proportional to 228,086.40, 342,129.60 and 59,606.40 is: 89,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,086.40 : 342,129.60 = 59,606.40 : x
  2. Step 2: Convert to fraction form
    228,086.40/342,129.60 = 59,606.40/x
  3. Step 3: Cross multiply
    228,086.40x = 342,129.60 × 59,606.40
  4. Step 4: Simplify right side
    228,086.40x = 20,393,113,789.44
  5. Step 5: Solve for x
    x = 20,393,113,789.44/228,086.40
  6. Step 6: Final answer
    x = 89,409.60

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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.