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Finding the Fourth Proportional to 98,225.90, 147,441.92 and 87,052.73

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Solution

The fourth proportional to 98,225.90, 147,441.92 and 87,052.73 is: 130,670.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,225.90 : 147,441.92 = 87,052.73 : x
  2. Step 2: Convert to fraction form
    98,225.90/147,441.92 = 87,052.73/x
  3. Step 3: Cross multiply
    98,225.90x = 147,441.92 × 87,052.73
  4. Step 4: Simplify right side
    98,225.90x = 12,835,220,479.97
  5. Step 5: Solve for x
    x = 12,835,220,479.97/98,225.90
  6. Step 6: Final answer
    x = 130,670.43

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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.