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Finding the Fourth Proportional to 58,240.80, 87,166.80 and 51,242.40

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Solution

The fourth proportional to 58,240.80, 87,166.80 and 51,242.40 is: 76,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,240.80 : 87,166.80 = 51,242.40 : x
  2. Step 2: Convert to fraction form
    58,240.80/87,166.80 = 51,242.40/x
  3. Step 3: Cross multiply
    58,240.80x = 87,166.80 × 51,242.40
  4. Step 4: Simplify right side
    58,240.80x = 4,466,636,032.32
  5. Step 5: Solve for x
    x = 4,466,636,032.32/58,240.80
  6. Step 6: Final answer
    x = 76,692.56

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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.