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Finding the Fourth Proportional to 169,391.70, 233,758.95 and 92,909.23

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Solution

The fourth proportional to 169,391.70, 233,758.95 and 92,909.23 is: 128,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,391.70 : 233,758.95 = 92,909.23 : x
  2. Step 2: Convert to fraction form
    169,391.70/233,758.95 = 92,909.23/x
  3. Step 3: Cross multiply
    169,391.70x = 233,758.95 × 92,909.23
  4. Step 4: Simplify right side
    169,391.70x = 21,718,364,050.11
  5. Step 5: Solve for x
    x = 21,718,364,050.11/169,391.70
  6. Step 6: Final answer
    x = 128,213.86

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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.