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Finding the Fourth Proportional to 53,269.40, 79,904.10 and 52,394.60

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Solution

The fourth proportional to 53,269.40, 79,904.10 and 52,394.60 is: 78,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,269.40 : 79,904.10 = 52,394.60 : x
  2. Step 2: Convert to fraction form
    53,269.40/79,904.10 = 52,394.60/x
  3. Step 3: Cross multiply
    53,269.40x = 79,904.10 × 52,394.60
  4. Step 4: Simplify right side
    53,269.40x = 4,186,543,357.86
  5. Step 5: Solve for x
    x = 4,186,543,357.86/53,269.40
  6. Step 6: Final answer
    x = 78,591.90

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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.