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Finding the Fourth Proportional to 138,652.33, 207,890.33 and 58,648.46

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Solution

The fourth proportional to 138,652.33, 207,890.33 and 58,648.46 is: 87,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,652.33 : 207,890.33 = 58,648.46 : x
  2. Step 2: Convert to fraction form
    138,652.33/207,890.33 = 58,648.46/x
  3. Step 3: Cross multiply
    138,652.33x = 207,890.33 × 58,648.46
  4. Step 4: Simplify right side
    138,652.33x = 12,192,447,703.39
  5. Step 5: Solve for x
    x = 12,192,447,703.39/138,652.33
  6. Step 6: Final answer
    x = 87,935.40

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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.