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Finding the Fourth Proportional to 98,228.64, 147,490.60 and 58,961.44

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Solution

The fourth proportional to 98,228.64, 147,490.60 and 58,961.44 is: 88,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,228.64 : 147,490.60 = 58,961.44 : x
  2. Step 2: Convert to fraction form
    98,228.64/147,490.60 = 58,961.44/x
  3. Step 3: Cross multiply
    98,228.64x = 147,490.60 × 58,961.44
  4. Step 4: Simplify right side
    98,228.64x = 8,696,258,162.46
  5. Step 5: Solve for x
    x = 8,696,258,162.46/98,228.64
  6. Step 6: Final answer
    x = 88,530.78

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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.