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Finding the Fourth Proportional to 56,434.60, 84,524.70 and 43,856.68

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Solution

The fourth proportional to 56,434.60, 84,524.70 and 43,856.68 is: 65,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,434.60 : 84,524.70 = 43,856.68 : x
  2. Step 2: Convert to fraction form
    56,434.60/84,524.70 = 43,856.68/x
  3. Step 3: Cross multiply
    56,434.60x = 84,524.70 × 43,856.68
  4. Step 4: Simplify right side
    56,434.60x = 3,706,972,720.00
  5. Step 5: Solve for x
    x = 3,706,972,720.00/56,434.60
  6. Step 6: Final answer
    x = 65,686.17

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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.