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Finding the Fourth Proportional to 147,003.68, 220,330.48 and 102,388.80

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Solution

The fourth proportional to 147,003.68, 220,330.48 and 102,388.80 is: 153,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,003.68 : 220,330.48 = 102,388.80 : x
  2. Step 2: Convert to fraction form
    147,003.68/220,330.48 = 102,388.80/x
  3. Step 3: Cross multiply
    147,003.68x = 220,330.48 × 102,388.80
  4. Step 4: Simplify right side
    147,003.68x = 22,559,373,450.62
  5. Step 5: Solve for x
    x = 22,559,373,450.62/147,003.68
  6. Step 6: Final answer
    x = 153,461.28

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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.