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Finding the Fourth Proportional to 98,859.38, 148,258.40 and 35,671.28

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Solution

The fourth proportional to 98,859.38, 148,258.40 and 35,671.28 is: 53,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,859.38 : 148,258.40 = 35,671.28 : x
  2. Step 2: Convert to fraction form
    98,859.38/148,258.40 = 35,671.28/x
  3. Step 3: Cross multiply
    98,859.38x = 148,258.40 × 35,671.28
  4. Step 4: Simplify right side
    98,859.38x = 5,288,566,898.75
  5. Step 5: Solve for x
    x = 5,288,566,898.75/98,859.38
  6. Step 6: Final answer
    x = 53,495.85

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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.