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Finding the Fourth Proportional to 147,620.40, 221,459.40 and 63,380.40

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Solution

The fourth proportional to 147,620.40, 221,459.40 and 63,380.40 is: 95,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,620.40 : 221,459.40 = 63,380.40 : x
  2. Step 2: Convert to fraction form
    147,620.40/221,459.40 = 63,380.40/x
  3. Step 3: Cross multiply
    147,620.40x = 221,459.40 × 63,380.40
  4. Step 4: Simplify right side
    147,620.40x = 14,036,185,355.76
  5. Step 5: Solve for x
    x = 14,036,185,355.76/147,620.40
  6. Step 6: Final answer
    x = 95,082.97

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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.