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Finding the Fourth Proportional to 171,875.20, 258,007.20 and 92,948.80

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Solution

The fourth proportional to 171,875.20, 258,007.20 and 92,948.80 is: 139,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,875.20 : 258,007.20 = 92,948.80 : x
  2. Step 2: Convert to fraction form
    171,875.20/258,007.20 = 92,948.80/x
  3. Step 3: Cross multiply
    171,875.20x = 258,007.20 × 92,948.80
  4. Step 4: Simplify right side
    171,875.20x = 23,981,459,631.36
  5. Step 5: Solve for x
    x = 23,981,459,631.36/171,875.20
  6. Step 6: Final answer
    x = 139,528.33

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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.