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Finding the Fourth Proportional to 126,445.68, 174,493.80 and 69,855.84

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Solution

The fourth proportional to 126,445.68, 174,493.80 and 69,855.84 is: 96,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,445.68 : 174,493.80 = 69,855.84 : x
  2. Step 2: Convert to fraction form
    126,445.68/174,493.80 = 69,855.84/x
  3. Step 3: Cross multiply
    126,445.68x = 174,493.80 × 69,855.84
  4. Step 4: Simplify right side
    126,445.68x = 12,189,410,973.79
  5. Step 5: Solve for x
    x = 12,189,410,973.79/126,445.68
  6. Step 6: Final answer
    x = 96,400.38

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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.