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Finding the Fourth Proportional to 119,103.72, 164,363.60 and 65,394.24

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Solution

The fourth proportional to 119,103.72, 164,363.60 and 65,394.24 is: 90,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,103.72 : 164,363.60 = 65,394.24 : x
  2. Step 2: Convert to fraction form
    119,103.72/164,363.60 = 65,394.24/x
  3. Step 3: Cross multiply
    119,103.72x = 164,363.60 × 65,394.24
  4. Step 4: Simplify right side
    119,103.72x = 10,748,432,705.66
  5. Step 5: Solve for x
    x = 10,748,432,705.66/119,103.72
  6. Step 6: Final answer
    x = 90,244.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.