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Finding the Fourth Proportional to 303,390.62, 455,150.73 and 116,400.50

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Solution

The fourth proportional to 303,390.62, 455,150.73 and 116,400.50 is: 174,625.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,390.62 : 455,150.73 = 116,400.50 : x
  2. Step 2: Convert to fraction form
    303,390.62/455,150.73 = 116,400.50/x
  3. Step 3: Cross multiply
    303,390.62x = 455,150.73 × 116,400.50
  4. Step 4: Simplify right side
    303,390.62x = 52,979,772,547.37
  5. Step 5: Solve for x
    x = 52,979,772,547.37/303,390.62
  6. Step 6: Final answer
    x = 174,625.61

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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.