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Finding the Fourth Proportional to 122,794.19, 169,393.95 and 71,773.59

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Solution

The fourth proportional to 122,794.19, 169,393.95 and 71,773.59 is: 99,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,794.19 : 169,393.95 = 71,773.59 : x
  2. Step 2: Convert to fraction form
    122,794.19/169,393.95 = 71,773.59/x
  3. Step 3: Cross multiply
    122,794.19x = 169,393.95 × 71,773.59
  4. Step 4: Simplify right side
    122,794.19x = 12,158,011,136.10
  5. Step 5: Solve for x
    x = 12,158,011,136.10/122,794.19
  6. Step 6: Final answer
    x = 99,011.29

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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.