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Finding the Fourth Proportional to 126,053.40, 189,080.10 and 63,845.40

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Solution

The fourth proportional to 126,053.40, 189,080.10 and 63,845.40 is: 95,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,053.40 : 189,080.10 = 63,845.40 : x
  2. Step 2: Convert to fraction form
    126,053.40/189,080.10 = 63,845.40/x
  3. Step 3: Cross multiply
    126,053.40x = 189,080.10 × 63,845.40
  4. Step 4: Simplify right side
    126,053.40x = 12,071,894,616.54
  5. Step 5: Solve for x
    x = 12,071,894,616.54/126,053.40
  6. Step 6: Final answer
    x = 95,768.10

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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.