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Finding the Fourth Proportional to 64,555.89, 96,536.57 and 61,406.61

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Solution

The fourth proportional to 64,555.89, 96,536.57 and 61,406.61 is: 91,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,555.89 : 96,536.57 = 61,406.61 : x
  2. Step 2: Convert to fraction form
    64,555.89/96,536.57 = 61,406.61/x
  3. Step 3: Cross multiply
    64,555.89x = 96,536.57 × 61,406.61
  4. Step 4: Simplify right side
    64,555.89x = 5,927,983,378.70
  5. Step 5: Solve for x
    x = 5,927,983,378.70/64,555.89
  6. Step 6: Final answer
    x = 91,827.15

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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.