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Finding the Fourth Proportional to 56,737, 78,299.76 and 31,586.52

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Solution

The fourth proportional to 56,737, 78,299.76 and 31,586.52 is: 43,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,737 : 78,299.76 = 31,586.52 : x
  2. Step 2: Convert to fraction form
    56,737/78,299.76 = 31,586.52/x
  3. Step 3: Cross multiply
    56,737x = 78,299.76 × 31,586.52
  4. Step 4: Simplify right side
    56,737x = 2,473,216,935.24
  5. Step 5: Solve for x
    x = 2,473,216,935.24/56,737
  6. Step 6: Final answer
    x = 43,590.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.