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Finding the Fourth Proportional to 258,340.74, 386,950.35 and 124,941.27

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Solution

The fourth proportional to 258,340.74, 386,950.35 and 124,941.27 is: 187,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,340.74 : 386,950.35 = 124,941.27 : x
  2. Step 2: Convert to fraction form
    258,340.74/386,950.35 = 124,941.27/x
  3. Step 3: Cross multiply
    258,340.74x = 386,950.35 × 124,941.27
  4. Step 4: Simplify right side
    258,340.74x = 48,346,068,155.94
  5. Step 5: Solve for x
    x = 48,346,068,155.94/258,340.74
  6. Step 6: Final answer
    x = 187,140.70

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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.