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Finding the Fourth Proportional to 78,580.94, 108,444.26 and 44,590.86

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Solution

The fourth proportional to 78,580.94, 108,444.26 and 44,590.86 is: 61,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,580.94 : 108,444.26 = 44,590.86 : x
  2. Step 2: Convert to fraction form
    78,580.94/108,444.26 = 44,590.86/x
  3. Step 3: Cross multiply
    78,580.94x = 108,444.26 × 44,590.86
  4. Step 4: Simplify right side
    78,580.94x = 4,835,622,689.66
  5. Step 5: Solve for x
    x = 4,835,622,689.66/78,580.94
  6. Step 6: Final answer
    x = 61,536.84

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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.