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Finding the Fourth Proportional to 147,189.48, 220,786.32 and 42,008.46

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Solution

The fourth proportional to 147,189.48, 220,786.32 and 42,008.46 is: 63,013.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,189.48 : 220,786.32 = 42,008.46 : x
  2. Step 2: Convert to fraction form
    147,189.48/220,786.32 = 42,008.46/x
  3. Step 3: Cross multiply
    147,189.48x = 220,786.32 × 42,008.46
  4. Step 4: Simplify right side
    147,189.48x = 9,274,893,292.27
  5. Step 5: Solve for x
    x = 9,274,893,292.27/147,189.48
  6. Step 6: Final answer
    x = 63,013.29

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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.