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Finding the Fourth Proportional to 228,809.47, 315,569.85 and 161,050.75

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Solution

The fourth proportional to 228,809.47, 315,569.85 and 161,050.75 is: 222,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,809.47 : 315,569.85 = 161,050.75 : x
  2. Step 2: Convert to fraction form
    228,809.47/315,569.85 = 161,050.75/x
  3. Step 3: Cross multiply
    228,809.47x = 315,569.85 × 161,050.75
  4. Step 4: Simplify right side
    228,809.47x = 50,822,761,019.89
  5. Step 5: Solve for x
    x = 50,822,761,019.89/228,809.47
  6. Step 6: Final answer
    x = 222,118.26

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1.5x scale

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.