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Finding the Fourth Proportional to 74,364.94, 102,576.88 and 44,128.86

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Solution

The fourth proportional to 74,364.94, 102,576.88 and 44,128.86 is: 60,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364.94 : 102,576.88 = 44,128.86 : x
  2. Step 2: Convert to fraction form
    74,364.94/102,576.88 = 44,128.86/x
  3. Step 3: Cross multiply
    74,364.94x = 102,576.88 × 44,128.86
  4. Step 4: Simplify right side
    74,364.94x = 4,526,600,043.23
  5. Step 5: Solve for x
    x = 4,526,600,043.23/74,364.94
  6. Step 6: Final answer
    x = 60,870.08

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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.