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Finding the Fourth Proportional to 308,058.91, 424,943.85 and 185,465.95

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Solution

The fourth proportional to 308,058.91, 424,943.85 and 185,465.95 is: 255,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,058.91 : 424,943.85 = 185,465.95 : x
  2. Step 2: Convert to fraction form
    308,058.91/424,943.85 = 185,465.95/x
  3. Step 3: Cross multiply
    308,058.91x = 424,943.85 × 185,465.95
  4. Step 4: Simplify right side
    308,058.91x = 78,812,614,836.91
  5. Step 5: Solve for x
    x = 78,812,614,836.91/308,058.91
  6. Step 6: Final answer
    x = 255,836.18

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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.