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Finding the Fourth Proportional to 92,270.68, 138,406.10 and 66,026.68

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Solution

The fourth proportional to 92,270.68, 138,406.10 and 66,026.68 is: 99,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,270.68 : 138,406.10 = 66,026.68 : x
  2. Step 2: Convert to fraction form
    92,270.68/138,406.10 = 66,026.68/x
  3. Step 3: Cross multiply
    92,270.68x = 138,406.10 × 66,026.68
  4. Step 4: Simplify right side
    92,270.68x = 9,138,495,274.75
  5. Step 5: Solve for x
    x = 9,138,495,274.75/92,270.68
  6. Step 6: Final answer
    x = 99,040.08

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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.