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Finding the Fourth Proportional to 65,833.14, 90,824.36 and 45,679.93

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Solution

The fourth proportional to 65,833.14, 90,824.36 and 45,679.93 is: 63,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,833.14 : 90,824.36 = 45,679.93 : x
  2. Step 2: Convert to fraction form
    65,833.14/90,824.36 = 45,679.93/x
  3. Step 3: Cross multiply
    65,833.14x = 90,824.36 × 45,679.93
  4. Step 4: Simplify right side
    65,833.14x = 4,148,850,178.70
  5. Step 5: Solve for x
    x = 4,148,850,178.70/65,833.14
  6. Step 6: Final answer
    x = 63,020.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.