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Finding the Fourth Proportional to 77,392.47, 116,069.46 and 43,673.28

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Solution

The fourth proportional to 77,392.47, 116,069.46 and 43,673.28 is: 65,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,392.47 : 116,069.46 = 43,673.28 : x
  2. Step 2: Convert to fraction form
    77,392.47/116,069.46 = 43,673.28/x
  3. Step 3: Cross multiply
    77,392.47x = 116,069.46 × 43,673.28
  4. Step 4: Simplify right side
    77,392.47x = 5,069,134,026.03
  5. Step 5: Solve for x
    x = 5,069,134,026.03/77,392.47
  6. Step 6: Final answer
    x = 65,499.06

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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.