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Finding the Fourth Proportional to 126,448.76, 189,779.56 and 63,249.93

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Solution

The fourth proportional to 126,448.76, 189,779.56 and 63,249.93 is: 94,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,448.76 : 189,779.56 = 63,249.93 : x
  2. Step 2: Convert to fraction form
    126,448.76/189,779.56 = 63,249.93/x
  3. Step 3: Cross multiply
    126,448.76x = 189,779.56 × 63,249.93
  4. Step 4: Simplify right side
    126,448.76x = 12,003,543,727.31
  5. Step 5: Solve for x
    x = 12,003,543,727.31/126,448.76
  6. Step 6: Final answer
    x = 94,928.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.