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Finding the Fourth Proportional to 92,666.28, 139,167.90 and 88,907.88

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Solution

The fourth proportional to 92,666.28, 139,167.90 and 88,907.88 is: 133,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,666.28 : 139,167.90 = 88,907.88 : x
  2. Step 2: Convert to fraction form
    92,666.28/139,167.90 = 88,907.88/x
  3. Step 3: Cross multiply
    92,666.28x = 139,167.90 × 88,907.88
  4. Step 4: Simplify right side
    92,666.28x = 12,373,122,953.05
  5. Step 5: Solve for x
    x = 12,373,122,953.05/92,666.28
  6. Step 6: Final answer
    x = 133,523.47

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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.