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Finding the Fourth Proportional to 317,864.36, 476,329.98 and 159,875.48

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Solution

The fourth proportional to 317,864.36, 476,329.98 and 159,875.48 is: 239,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,864.36 : 476,329.98 = 159,875.48 : x
  2. Step 2: Convert to fraction form
    317,864.36/476,329.98 = 159,875.48/x
  3. Step 3: Cross multiply
    317,864.36x = 476,329.98 × 159,875.48
  4. Step 4: Simplify right side
    317,864.36x = 76,153,484,190.89
  5. Step 5: Solve for x
    x = 76,153,484,190.89/317,864.36
  6. Step 6: Final answer
    x = 239,578.56

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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.