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Finding the Fourth Proportional to 188,337.40, 282,419.70 and 83,102.20

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Solution

The fourth proportional to 188,337.40, 282,419.70 and 83,102.20 is: 124,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,337.40 : 282,419.70 = 83,102.20 : x
  2. Step 2: Convert to fraction form
    188,337.40/282,419.70 = 83,102.20/x
  3. Step 3: Cross multiply
    188,337.40x = 282,419.70 × 83,102.20
  4. Step 4: Simplify right side
    188,337.40x = 23,469,698,393.34
  5. Step 5: Solve for x
    x = 23,469,698,393.34/188,337.40
  6. Step 6: Final answer
    x = 124,615.18

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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.