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Finding the Fourth Proportional to 147,270.13, 220,905.13 and 42,089.13

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Solution

The fourth proportional to 147,270.13, 220,905.13 and 42,089.13 is: 63,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,270.13 : 220,905.13 = 42,089.13 : x
  2. Step 2: Convert to fraction form
    147,270.13/220,905.13 = 42,089.13/x
  3. Step 3: Cross multiply
    147,270.13x = 220,905.13 × 42,089.13
  4. Step 4: Simplify right side
    147,270.13x = 9,297,704,734.24
  5. Step 5: Solve for x
    x = 9,297,704,734.24/147,270.13
  6. Step 6: Final answer
    x = 63,133.68

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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.