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Finding the Fourth Proportional to 123,016.68, 169,731.63 and 75,252.60

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Solution

The fourth proportional to 123,016.68, 169,731.63 and 75,252.60 is: 103,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,016.68 : 169,731.63 = 75,252.60 : x
  2. Step 2: Convert to fraction form
    123,016.68/169,731.63 = 75,252.60/x
  3. Step 3: Cross multiply
    123,016.68x = 169,731.63 × 75,252.60
  4. Step 4: Simplify right side
    123,016.68x = 12,772,746,459.74
  5. Step 5: Solve for x
    x = 12,772,746,459.74/123,016.68
  6. Step 6: Final answer
    x = 103,829.39

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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.