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Finding the Fourth Proportional to 191,992.40, 287,851.96 and 73,563.60

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Solution

The fourth proportional to 191,992.40, 287,851.96 and 73,563.60 is: 110,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,992.40 : 287,851.96 = 73,563.60 : x
  2. Step 2: Convert to fraction form
    191,992.40/287,851.96 = 73,563.60/x
  3. Step 3: Cross multiply
    191,992.40x = 287,851.96 × 73,563.60
  4. Step 4: Simplify right side
    191,992.40x = 21,175,426,444.66
  5. Step 5: Solve for x
    x = 21,175,426,444.66/191,992.40
  6. Step 6: Final answer
    x = 110,293.05

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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.