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Finding the Fourth Proportional to 275,907.40, 413,861.10 and 109,695.40

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Solution

The fourth proportional to 275,907.40, 413,861.10 and 109,695.40 is: 164,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,907.40 : 413,861.10 = 109,695.40 : x
  2. Step 2: Convert to fraction form
    275,907.40/413,861.10 = 109,695.40/x
  3. Step 3: Cross multiply
    275,907.40x = 413,861.10 × 109,695.40
  4. Step 4: Simplify right side
    275,907.40x = 45,398,658,908.94
  5. Step 5: Solve for x
    x = 45,398,658,908.94/275,907.40
  6. Step 6: Final answer
    x = 164,543.10

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1.5x scale

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.