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Finding the Fourth Proportional to 174,673.90, 261,823.96 and 90,349.17

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Solution

The fourth proportional to 174,673.90, 261,823.96 and 90,349.17 is: 135,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,673.90 : 261,823.96 = 90,349.17 : x
  2. Step 2: Convert to fraction form
    174,673.90/261,823.96 = 90,349.17/x
  3. Step 3: Cross multiply
    174,673.90x = 261,823.96 × 90,349.17
  4. Step 4: Simplify right side
    174,673.90x = 23,655,577,472.11
  5. Step 5: Solve for x
    x = 23,655,577,472.11/174,673.90
  6. Step 6: Final answer
    x = 135,427.09

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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.