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Finding the Fourth Proportional to 56,505.90, 84,774.90 and 46,074.59

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Solution

The fourth proportional to 56,505.90, 84,774.90 and 46,074.59 is: 69,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.90 : 84,774.90 = 46,074.59 : x
  2. Step 2: Convert to fraction form
    56,505.90/84,774.90 = 46,074.59/x
  3. Step 3: Cross multiply
    56,505.90x = 84,774.90 × 46,074.59
  4. Step 4: Simplify right side
    56,505.90x = 3,905,968,826.60
  5. Step 5: Solve for x
    x = 3,905,968,826.60/56,505.90
  6. Step 6: Final answer
    x = 69,124.97

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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.