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Finding the Fourth Proportional to 147,215.94, 220,819.41 and 42,035.10

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Solution

The fourth proportional to 147,215.94, 220,819.41 and 42,035.10 is: 63,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,215.94 : 220,819.41 = 42,035.10 : x
  2. Step 2: Convert to fraction form
    147,215.94/220,819.41 = 42,035.10/x
  3. Step 3: Cross multiply
    147,215.94x = 220,819.41 × 42,035.10
  4. Step 4: Simplify right side
    147,215.94x = 9,282,165,981.29
  5. Step 5: Solve for x
    x = 9,282,165,981.29/147,215.94
  6. Step 6: Final answer
    x = 63,051.37

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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.