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Finding the Fourth Proportional to 147,705.28, 221,536.02 and 47,874.28

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Solution

The fourth proportional to 147,705.28, 221,536.02 and 47,874.28 is: 71,804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,705.28 : 221,536.02 = 47,874.28 : x
  2. Step 2: Convert to fraction form
    147,705.28/221,536.02 = 47,874.28/x
  3. Step 3: Cross multiply
    147,705.28x = 221,536.02 × 47,874.28
  4. Step 4: Simplify right side
    147,705.28x = 10,605,877,451.57
  5. Step 5: Solve for x
    x = 10,605,877,451.57/147,705.28
  6. Step 6: Final answer
    x = 71,804.32

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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.