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Finding the Fourth Proportional to 110,364, 152,291.79 and 61,954.86

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Solution

The fourth proportional to 110,364, 152,291.79 and 61,954.86 is: 85,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,364 : 152,291.79 = 61,954.86 : x
  2. Step 2: Convert to fraction form
    110,364/152,291.79 = 61,954.86/x
  3. Step 3: Cross multiply
    110,364x = 152,291.79 × 61,954.86
  4. Step 4: Simplify right side
    110,364x = 9,435,216,528.60
  5. Step 5: Solve for x
    x = 9,435,216,528.60/110,364
  6. Step 6: Final answer
    x = 85,491.80

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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.