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Finding the Fourth Proportional to 158,957.80, 238,436.12 and 40,628.96

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Solution

The fourth proportional to 158,957.80, 238,436.12 and 40,628.96 is: 60,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,957.80 : 238,436.12 = 40,628.96 : x
  2. Step 2: Convert to fraction form
    158,957.80/238,436.12 = 40,628.96/x
  3. Step 3: Cross multiply
    158,957.80x = 238,436.12 × 40,628.96
  4. Step 4: Simplify right side
    158,957.80x = 9,687,411,582.04
  5. Step 5: Solve for x
    x = 9,687,411,582.04/158,957.80
  6. Step 6: Final answer
    x = 60,943.29

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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.