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Finding the Fourth Proportional to 84,054.72, 125,975.04 and 44,630.40

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Solution

The fourth proportional to 84,054.72, 125,975.04 and 44,630.40 is: 66,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,054.72 : 125,975.04 = 44,630.40 : x
  2. Step 2: Convert to fraction form
    84,054.72/125,975.04 = 44,630.40/x
  3. Step 3: Cross multiply
    84,054.72x = 125,975.04 × 44,630.40
  4. Step 4: Simplify right side
    84,054.72x = 5,622,316,425.22
  5. Step 5: Solve for x
    x = 5,622,316,425.22/84,054.72
  6. Step 6: Final answer
    x = 66,888.77

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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.