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Finding the Fourth Proportional to 124,426.76, 186,640.04 and 30,932.51

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Solution

The fourth proportional to 124,426.76, 186,640.04 and 30,932.51 is: 46,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,426.76 : 186,640.04 = 30,932.51 : x
  2. Step 2: Convert to fraction form
    124,426.76/186,640.04 = 30,932.51/x
  3. Step 3: Cross multiply
    124,426.76x = 186,640.04 × 30,932.51
  4. Step 4: Simplify right side
    124,426.76x = 5,773,243,815.84
  5. Step 5: Solve for x
    x = 5,773,243,815.84/124,426.76
  6. Step 6: Final answer
    x = 46,398.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.