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Finding the Fourth Proportional to 147,593.60, 221,366.64 and 42,388.64

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Solution

The fourth proportional to 147,593.60, 221,366.64 and 42,388.64 is: 63,576.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,593.60 : 221,366.64 = 42,388.64 : x
  2. Step 2: Convert to fraction form
    147,593.60/221,366.64 = 42,388.64/x
  3. Step 3: Cross multiply
    147,593.60x = 221,366.64 × 42,388.64
  4. Step 4: Simplify right side
    147,593.60x = 9,383,430,810.97
  5. Step 5: Solve for x
    x = 9,383,430,810.97/147,593.60
  6. Step 6: Final answer
    x = 63,576.14

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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.