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Finding the Fourth Proportional to 147,066.40, 220,081.20 and 134,624.80

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Solution

The fourth proportional to 147,066.40, 220,081.20 and 134,624.80 is: 201,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,066.40 : 220,081.20 = 134,624.80 : x
  2. Step 2: Convert to fraction form
    147,066.40/220,081.20 = 134,624.80/x
  3. Step 3: Cross multiply
    147,066.40x = 220,081.20 × 134,624.80
  4. Step 4: Simplify right side
    147,066.40x = 29,628,387,533.76
  5. Step 5: Solve for x
    x = 29,628,387,533.76/147,066.40
  6. Step 6: Final answer
    x = 201,462.66

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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.