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Finding the Fourth Proportional to 92,170.36, 127,148.70 and 53,904.88

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Solution

The fourth proportional to 92,170.36, 127,148.70 and 53,904.88 is: 74,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,170.36 : 127,148.70 = 53,904.88 : x
  2. Step 2: Convert to fraction form
    92,170.36/127,148.70 = 53,904.88/x
  3. Step 3: Cross multiply
    92,170.36x = 127,148.70 × 53,904.88
  4. Step 4: Simplify right side
    92,170.36x = 6,853,935,415.66
  5. Step 5: Solve for x
    x = 6,853,935,415.66/92,170.36
  6. Step 6: Final answer
    x = 74,361.60

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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.