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Finding the Fourth Proportional to 191,737.13, 287,647.88 and 56,790.72

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Solution

The fourth proportional to 191,737.13, 287,647.88 and 56,790.72 is: 85,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,737.13 : 287,647.88 = 56,790.72 : x
  2. Step 2: Convert to fraction form
    191,737.13/287,647.88 = 56,790.72/x
  3. Step 3: Cross multiply
    191,737.13x = 287,647.88 × 56,790.72
  4. Step 4: Simplify right side
    191,737.13x = 16,335,729,927.72
  5. Step 5: Solve for x
    x = 16,335,729,927.72/191,737.13
  6. Step 6: Final answer
    x = 85,198.58

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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.