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Finding the Fourth Proportional to 56,773.65, 78,329.90 and 34,117.69

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Solution

The fourth proportional to 56,773.65, 78,329.90 and 34,117.69 is: 47,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,773.65 : 78,329.90 = 34,117.69 : x
  2. Step 2: Convert to fraction form
    56,773.65/78,329.90 = 34,117.69/x
  3. Step 3: Cross multiply
    56,773.65x = 78,329.90 × 34,117.69
  4. Step 4: Simplify right side
    56,773.65x = 2,672,435,245.93
  5. Step 5: Solve for x
    x = 2,672,435,245.93/56,773.65
  6. Step 6: Final answer
    x = 47,071.75

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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.