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Finding the Fourth Proportional to 58,266.90, 87,400.35 and 51,705.90

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Solution

The fourth proportional to 58,266.90, 87,400.35 and 51,705.90 is: 77,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266.90 : 87,400.35 = 51,705.90 : x
  2. Step 2: Convert to fraction form
    58,266.90/87,400.35 = 51,705.90/x
  3. Step 3: Cross multiply
    58,266.90x = 87,400.35 × 51,705.90
  4. Step 4: Simplify right side
    58,266.90x = 4,519,113,757.07
  5. Step 5: Solve for x
    x = 4,519,113,757.07/58,266.90
  6. Step 6: Final answer
    x = 77,558.85

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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.