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Finding the Fourth Proportional to 191,305.64, 263,818.32 and 126,672.32

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Solution

The fourth proportional to 191,305.64, 263,818.32 and 126,672.32 is: 174,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,305.64 : 263,818.32 = 126,672.32 : x
  2. Step 2: Convert to fraction form
    191,305.64/263,818.32 = 126,672.32/x
  3. Step 3: Cross multiply
    191,305.64x = 263,818.32 × 126,672.32
  4. Step 4: Simplify right side
    191,305.64x = 33,418,478,652.90
  5. Step 5: Solve for x
    x = 33,418,478,652.90/191,305.64
  6. Step 6: Final answer
    x = 174,686.32

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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.