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Finding the Fourth Proportional to 58,258.70, 87,200.06 and 30,140.02

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Solution

The fourth proportional to 58,258.70, 87,200.06 and 30,140.02 is: 45,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,258.70 : 87,200.06 = 30,140.02 : x
  2. Step 2: Convert to fraction form
    58,258.70/87,200.06 = 30,140.02/x
  3. Step 3: Cross multiply
    58,258.70x = 87,200.06 × 30,140.02
  4. Step 4: Simplify right side
    58,258.70x = 2,628,211,183.70
  5. Step 5: Solve for x
    x = 2,628,211,183.70/58,258.70
  6. Step 6: Final answer
    x = 45,112.77

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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.