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Finding the Fourth Proportional to 76,952.47, 115,465.16 and 53,296.42

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Solution

The fourth proportional to 76,952.47, 115,465.16 and 53,296.42 is: 79,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,952.47 : 115,465.16 = 53,296.42 : x
  2. Step 2: Convert to fraction form
    76,952.47/115,465.16 = 53,296.42/x
  3. Step 3: Cross multiply
    76,952.47x = 115,465.16 × 53,296.42
  4. Step 4: Simplify right side
    76,952.47x = 6,153,879,662.73
  5. Step 5: Solve for x
    x = 6,153,879,662.73/76,952.47
  6. Step 6: Final answer
    x = 79,969.88

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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.