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Finding the Fourth Proportional to 78,801.48, 108,741.62 and 44,805.20

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Solution

The fourth proportional to 78,801.48, 108,741.62 and 44,805.20 is: 61,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801.48 : 108,741.62 = 44,805.20 : x
  2. Step 2: Convert to fraction form
    78,801.48/108,741.62 = 44,805.20/x
  3. Step 3: Cross multiply
    78,801.48x = 108,741.62 × 44,805.20
  4. Step 4: Simplify right side
    78,801.48x = 4,872,190,032.42
  5. Step 5: Solve for x
    x = 4,872,190,032.42/78,801.48
  6. Step 6: Final answer
    x = 61,828.66

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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.