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Finding the Fourth Proportional to 65,566.32, 90,409.74 and 44,308.68

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Solution

The fourth proportional to 65,566.32, 90,409.74 and 44,308.68 is: 61,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,566.32 : 90,409.74 = 44,308.68 : x
  2. Step 2: Convert to fraction form
    65,566.32/90,409.74 = 44,308.68/x
  3. Step 3: Cross multiply
    65,566.32x = 90,409.74 × 44,308.68
  4. Step 4: Simplify right side
    65,566.32x = 4,005,936,238.54
  5. Step 5: Solve for x
    x = 4,005,936,238.54/65,566.32
  6. Step 6: Final answer
    x = 61,097.47

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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.