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Finding the Fourth Proportional to 92,949.63, 128,270.61 and 52,666.11

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Solution

The fourth proportional to 92,949.63, 128,270.61 and 52,666.11 is: 72,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,949.63 : 128,270.61 = 52,666.11 : x
  2. Step 2: Convert to fraction form
    92,949.63/128,270.61 = 52,666.11/x
  3. Step 3: Cross multiply
    92,949.63x = 128,270.61 × 52,666.11
  4. Step 4: Simplify right side
    92,949.63x = 6,755,514,056.03
  5. Step 5: Solve for x
    x = 6,755,514,056.03/92,949.63
  6. Step 6: Final answer
    x = 72,679.30

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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.