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Finding the Fourth Proportional to 79,459.52, 119,173.52 and 39,436.76

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Solution

The fourth proportional to 79,459.52, 119,173.52 and 39,436.76 is: 59,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,459.52 : 119,173.52 = 39,436.76 : x
  2. Step 2: Convert to fraction form
    79,459.52/119,173.52 = 39,436.76/x
  3. Step 3: Cross multiply
    79,459.52x = 119,173.52 × 39,436.76
  4. Step 4: Simplify right side
    79,459.52x = 4,699,817,506.60
  5. Step 5: Solve for x
    x = 4,699,817,506.60/79,459.52
  6. Step 6: Final answer
    x = 59,147.32

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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.