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Finding the Fourth Proportional to 134,730.54, 185,914.04 and 74,298.87

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Solution

The fourth proportional to 134,730.54, 185,914.04 and 74,298.87 is: 102,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,730.54 : 185,914.04 = 74,298.87 : x
  2. Step 2: Convert to fraction form
    134,730.54/185,914.04 = 74,298.87/x
  3. Step 3: Cross multiply
    134,730.54x = 185,914.04 × 74,298.87
  4. Step 4: Simplify right side
    134,730.54x = 13,813,202,717.64
  5. Step 5: Solve for x
    x = 13,813,202,717.64/134,730.54
  6. Step 6: Final answer
    x = 102,524.66

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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.