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Finding the Fourth Proportional to 134,725.44, 185,921.03 and 77,368.52

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Solution

The fourth proportional to 134,725.44, 185,921.03 and 77,368.52 is: 106,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,725.44 : 185,921.03 = 77,368.52 : x
  2. Step 2: Convert to fraction form
    134,725.44/185,921.03 = 77,368.52/x
  3. Step 3: Cross multiply
    134,725.44x = 185,921.03 × 77,368.52
  4. Step 4: Simplify right side
    134,725.44x = 14,384,433,611.53
  5. Step 5: Solve for x
    x = 14,384,433,611.53/134,725.44
  6. Step 6: Final answer
    x = 106,768.50

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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.