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Finding the Fourth Proportional to 76,801.72, 105,988.62 and 44,967.64

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Solution

The fourth proportional to 76,801.72, 105,988.62 and 44,967.64 is: 62,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801.72 : 105,988.62 = 44,967.64 : x
  2. Step 2: Convert to fraction form
    76,801.72/105,988.62 = 44,967.64/x
  3. Step 3: Cross multiply
    76,801.72x = 105,988.62 × 44,967.64
  4. Step 4: Simplify right side
    76,801.72x = 4,766,058,108.26
  5. Step 5: Solve for x
    x = 4,766,058,108.26/76,801.72
  6. Step 6: Final answer
    x = 62,056.66

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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.