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Finding the Fourth Proportional to 130,216.40, 195,713.40 and 113,109.20

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Solution

The fourth proportional to 130,216.40, 195,713.40 and 113,109.20 is: 170,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,216.40 : 195,713.40 = 113,109.20 : x
  2. Step 2: Convert to fraction form
    130,216.40/195,713.40 = 113,109.20/x
  3. Step 3: Cross multiply
    130,216.40x = 195,713.40 × 113,109.20
  4. Step 4: Simplify right side
    130,216.40x = 22,136,986,103.28
  5. Step 5: Solve for x
    x = 22,136,986,103.28/130,216.40
  6. Step 6: Final answer
    x = 170,001.52

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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.