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Finding the Fourth Proportional to 92,660, 138,897.60 and 36,464.96

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Solution

The fourth proportional to 92,660, 138,897.60 and 36,464.96 is: 54,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,660 : 138,897.60 = 36,464.96 : x
  2. Step 2: Convert to fraction form
    92,660/138,897.60 = 36,464.96/x
  3. Step 3: Cross multiply
    92,660x = 138,897.60 × 36,464.96
  4. Step 4: Simplify right side
    92,660x = 5,064,895,428.10
  5. Step 5: Solve for x
    x = 5,064,895,428.10/92,660
  6. Step 6: Final answer
    x = 54,661.08

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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.