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Finding the Fourth Proportional to 67,709.52, 93,220.88 and 58,130.46

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Solution

The fourth proportional to 67,709.52, 93,220.88 and 58,130.46 is: 80,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,709.52 : 93,220.88 = 58,130.46 : x
  2. Step 2: Convert to fraction form
    67,709.52/93,220.88 = 58,130.46/x
  3. Step 3: Cross multiply
    67,709.52x = 93,220.88 × 58,130.46
  4. Step 4: Simplify right side
    67,709.52x = 5,418,972,345.35
  5. Step 5: Solve for x
    x = 5,418,972,345.35/67,709.52
  6. Step 6: Final answer
    x = 80,032.65

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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.