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Finding the Fourth Proportional to 442,325.25, 663,487.88 and 109,901.25

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Solution

The fourth proportional to 442,325.25, 663,487.88 and 109,901.25 is: 164,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,325.25 : 663,487.88 = 109,901.25 : x
  2. Step 2: Convert to fraction form
    442,325.25/663,487.88 = 109,901.25/x
  3. Step 3: Cross multiply
    442,325.25x = 663,487.88 × 109,901.25
  4. Step 4: Simplify right side
    442,325.25x = 72,918,146,822.34
  5. Step 5: Solve for x
    x = 72,918,146,822.34/442,325.25
  6. Step 6: Final answer
    x = 164,851.88

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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.