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Finding the Fourth Proportional to 127,762.84, 176,310.51 and 74,052.86

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Solution

The fourth proportional to 127,762.84, 176,310.51 and 74,052.86 is: 102,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,762.84 : 176,310.51 = 74,052.86 : x
  2. Step 2: Convert to fraction form
    127,762.84/176,310.51 = 74,052.86/x
  3. Step 3: Cross multiply
    127,762.84x = 176,310.51 × 74,052.86
  4. Step 4: Simplify right side
    127,762.84x = 13,056,297,162.59
  5. Step 5: Solve for x
    x = 13,056,297,162.59/127,762.84
  6. Step 6: Final answer
    x = 102,191.66

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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.