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Finding the Fourth Proportional to 136,094.59, 187,813.58 and 74,836.89

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Solution

The fourth proportional to 136,094.59, 187,813.58 and 74,836.89 is: 103,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,094.59 : 187,813.58 = 74,836.89 : x
  2. Step 2: Convert to fraction form
    136,094.59/187,813.58 = 74,836.89/x
  3. Step 3: Cross multiply
    136,094.59x = 187,813.58 × 74,836.89
  4. Step 4: Simplify right side
    136,094.59x = 14,055,384,509.41
  5. Step 5: Solve for x
    x = 14,055,384,509.41/136,094.59
  6. Step 6: Final answer
    x = 103,276.59

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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.