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Finding the Fourth Proportional to 303,965.51, 455,878.94 and 114,445.86

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Solution

The fourth proportional to 303,965.51, 455,878.94 and 114,445.86 is: 171,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,965.51 : 455,878.94 = 114,445.86 : x
  2. Step 2: Convert to fraction form
    303,965.51/455,878.94 = 114,445.86/x
  3. Step 3: Cross multiply
    303,965.51x = 455,878.94 × 114,445.86
  4. Step 4: Simplify right side
    303,965.51x = 52,173,457,626.73
  5. Step 5: Solve for x
    x = 52,173,457,626.73/303,965.51
  6. Step 6: Final answer
    x = 171,642.69

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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.