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Finding the Fourth Proportional to 191,737.30, 287,277.90 and 121,534.60

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Solution

The fourth proportional to 191,737.30, 287,277.90 and 121,534.60 is: 182,093.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,737.30 : 287,277.90 = 121,534.60 : x
  2. Step 2: Convert to fraction form
    191,737.30/287,277.90 = 121,534.60/x
  3. Step 3: Cross multiply
    191,737.30x = 287,277.90 × 121,534.60
  4. Step 4: Simplify right side
    191,737.30x = 34,914,204,665.34
  5. Step 5: Solve for x
    x = 34,914,204,665.34/191,737.30
  6. Step 6: Final answer
    x = 182,093.96

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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.