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Finding the Fourth Proportional to 47,269.80, 70,904.70 and 43,333.20

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Solution

The fourth proportional to 47,269.80, 70,904.70 and 43,333.20 is: 64,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,269.80 : 70,904.70 = 43,333.20 : x
  2. Step 2: Convert to fraction form
    47,269.80/70,904.70 = 43,333.20/x
  3. Step 3: Cross multiply
    47,269.80x = 70,904.70 × 43,333.20
  4. Step 4: Simplify right side
    47,269.80x = 3,072,527,546.04
  5. Step 5: Solve for x
    x = 3,072,527,546.04/47,269.80
  6. Step 6: Final answer
    x = 64,999.80

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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.