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Finding the Fourth Proportional to 219,911.40, 329,607.90 and 93,551.40

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Solution

The fourth proportional to 219,911.40, 329,607.90 and 93,551.40 is: 140,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,911.40 : 329,607.90 = 93,551.40 : x
  2. Step 2: Convert to fraction form
    219,911.40/329,607.90 = 93,551.40/x
  3. Step 3: Cross multiply
    219,911.40x = 329,607.90 × 93,551.40
  4. Step 4: Simplify right side
    219,911.40x = 30,835,280,496.06
  5. Step 5: Solve for x
    x = 30,835,280,496.06/219,911.40
  6. Step 6: Final answer
    x = 140,216.84

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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.