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Finding the Fourth Proportional to 98,889.40, 148,334.10 and 98,233.30

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Solution

The fourth proportional to 98,889.40, 148,334.10 and 98,233.30 is: 147,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889.40 : 148,334.10 = 98,233.30 : x
  2. Step 2: Convert to fraction form
    98,889.40/148,334.10 = 98,233.30/x
  3. Step 3: Cross multiply
    98,889.40x = 148,334.10 × 98,233.30
  4. Step 4: Simplify right side
    98,889.40x = 14,571,348,145.53
  5. Step 5: Solve for x
    x = 14,571,348,145.53/98,889.40
  6. Step 6: Final answer
    x = 147,349.95

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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.