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Finding the Fourth Proportional to 58,892.40, 88,511.40 and 51,289.20

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Solution

The fourth proportional to 58,892.40, 88,511.40 and 51,289.20 is: 77,084.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,892.40 : 88,511.40 = 51,289.20 : x
  2. Step 2: Convert to fraction form
    58,892.40/88,511.40 = 51,289.20/x
  3. Step 3: Cross multiply
    58,892.40x = 88,511.40 × 51,289.20
  4. Step 4: Simplify right side
    58,892.40x = 4,539,678,896.88
  5. Step 5: Solve for x
    x = 4,539,678,896.88/58,892.40
  6. Step 6: Final answer
    x = 77,084.29

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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.