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Finding the Fourth Proportional to 110,531.80, 165,797.70 and 71,133.40

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Solution

The fourth proportional to 110,531.80, 165,797.70 and 71,133.40 is: 106,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,531.80 : 165,797.70 = 71,133.40 : x
  2. Step 2: Convert to fraction form
    110,531.80/165,797.70 = 71,133.40/x
  3. Step 3: Cross multiply
    110,531.80x = 165,797.70 × 71,133.40
  4. Step 4: Simplify right side
    110,531.80x = 11,793,754,113.18
  5. Step 5: Solve for x
    x = 11,793,754,113.18/110,531.80
  6. Step 6: Final answer
    x = 106,700.10

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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.