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Finding the Fourth Proportional to 130,761.25, 196,171.04 and 47,655.25

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Solution

The fourth proportional to 130,761.25, 196,171.04 and 47,655.25 is: 71,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,761.25 : 196,171.04 = 47,655.25 : x
  2. Step 2: Convert to fraction form
    130,761.25/196,171.04 = 47,655.25/x
  3. Step 3: Cross multiply
    130,761.25x = 196,171.04 × 47,655.25
  4. Step 4: Simplify right side
    130,761.25x = 9,348,579,953.96
  5. Step 5: Solve for x
    x = 9,348,579,953.96/130,761.25
  6. Step 6: Final answer
    x = 71,493.50

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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.