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Finding the Fourth Proportional to 117,937.70, 176,647.35 and 71,108.90

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Solution

The fourth proportional to 117,937.70, 176,647.35 and 71,108.90 is: 106,507.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,937.70 : 176,647.35 = 71,108.90 : x
  2. Step 2: Convert to fraction form
    117,937.70/176,647.35 = 71,108.90/x
  3. Step 3: Cross multiply
    117,937.70x = 176,647.35 × 71,108.90
  4. Step 4: Simplify right side
    117,937.70x = 12,561,198,746.42
  5. Step 5: Solve for x
    x = 12,561,198,746.42/117,937.70
  6. Step 6: Final answer
    x = 106,507.07

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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.