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Finding the Fourth Proportional to 92,438.76, 127,566.18 and 54,199.28

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Solution

The fourth proportional to 92,438.76, 127,566.18 and 54,199.28 is: 74,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,438.76 : 127,566.18 = 54,199.28 : x
  2. Step 2: Convert to fraction form
    92,438.76/127,566.18 = 54,199.28/x
  3. Step 3: Cross multiply
    92,438.76x = 127,566.18 × 54,199.28
  4. Step 4: Simplify right side
    92,438.76x = 6,913,995,108.35
  5. Step 5: Solve for x
    x = 6,913,995,108.35/92,438.76
  6. Step 6: Final answer
    x = 74,795.41

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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.