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Finding the Fourth Proportional to 123,914.79, 170,996.60 and 70,200.25

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Solution

The fourth proportional to 123,914.79, 170,996.60 and 70,200.25 is: 96,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,914.79 : 170,996.60 = 70,200.25 : x
  2. Step 2: Convert to fraction form
    123,914.79/170,996.60 = 70,200.25/x
  3. Step 3: Cross multiply
    123,914.79x = 170,996.60 × 70,200.25
  4. Step 4: Simplify right side
    123,914.79x = 12,004,003,817.16
  5. Step 5: Solve for x
    x = 12,004,003,817.16/123,914.79
  6. Step 6: Final answer
    x = 96,873.05

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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.