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Finding the Fourth Proportional to 191,629.44, 287,323.68 and 58,465.44

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Solution

The fourth proportional to 191,629.44, 287,323.68 and 58,465.44 is: 87,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,629.44 : 287,323.68 = 58,465.44 : x
  2. Step 2: Convert to fraction form
    191,629.44/287,323.68 = 58,465.44/x
  3. Step 3: Cross multiply
    191,629.44x = 287,323.68 × 58,465.44
  4. Step 4: Simplify right side
    191,629.44x = 16,798,505,373.62
  5. Step 5: Solve for x
    x = 16,798,505,373.62/191,629.44
  6. Step 6: Final answer
    x = 87,661.40

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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.