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Finding the Fourth Proportional to 303,434.55, 455,279.40 and 163,029.15

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Solution

The fourth proportional to 303,434.55, 455,279.40 and 163,029.15 is: 244,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,434.55 : 455,279.40 = 163,029.15 : x
  2. Step 2: Convert to fraction form
    303,434.55/455,279.40 = 163,029.15/x
  3. Step 3: Cross multiply
    303,434.55x = 455,279.40 × 163,029.15
  4. Step 4: Simplify right side
    303,434.55x = 74,223,813,594.51
  5. Step 5: Solve for x
    x = 74,223,813,594.51/303,434.55
  6. Step 6: Final answer
    x = 244,612.27

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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.