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Finding the Fourth Proportional to 122,699.91, 169,256.72 and 73,628.84

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Solution

The fourth proportional to 122,699.91, 169,256.72 and 73,628.84 is: 101,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,699.91 : 169,256.72 = 73,628.84 : x
  2. Step 2: Convert to fraction form
    122,699.91/169,256.72 = 73,628.84/x
  3. Step 3: Cross multiply
    122,699.91x = 169,256.72 × 73,628.84
  4. Step 4: Simplify right side
    122,699.91x = 12,462,175,293.59
  5. Step 5: Solve for x
    x = 12,462,175,293.59/122,699.91
  6. Step 6: Final answer
    x = 101,566.30

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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.