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Finding the Fourth Proportional to 147,814.80, 221,700.60 and 42,622.80

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Solution

The fourth proportional to 147,814.80, 221,700.60 and 42,622.80 is: 63,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,814.80 : 221,700.60 = 42,622.80 : x
  2. Step 2: Convert to fraction form
    147,814.80/221,700.60 = 42,622.80/x
  3. Step 3: Cross multiply
    147,814.80x = 221,700.60 × 42,622.80
  4. Step 4: Simplify right side
    147,814.80x = 9,449,500,333.68
  5. Step 5: Solve for x
    x = 9,449,500,333.68/147,814.80
  6. Step 6: Final answer
    x = 63,927.97

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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.