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Finding the Fourth Proportional to 122,700.66, 169,257.76 and 73,629.59

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Solution

The fourth proportional to 122,700.66, 169,257.76 and 73,629.59 is: 101,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,700.66 : 169,257.76 = 73,629.59 : x
  2. Step 2: Convert to fraction form
    122,700.66/169,257.76 = 73,629.59/x
  3. Step 3: Cross multiply
    122,700.66x = 169,257.76 × 73,629.59
  4. Step 4: Simplify right side
    122,700.66x = 12,462,378,442.76
  5. Step 5: Solve for x
    x = 12,462,378,442.76/122,700.66
  6. Step 6: Final answer
    x = 101,567.33

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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.