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Finding the Fourth Proportional to 192,411.80, 288,617.70 and 156,982.40

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Solution

The fourth proportional to 192,411.80, 288,617.70 and 156,982.40 is: 235,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,411.80 : 288,617.70 = 156,982.40 : x
  2. Step 2: Convert to fraction form
    192,411.80/288,617.70 = 156,982.40/x
  3. Step 3: Cross multiply
    192,411.80x = 288,617.70 × 156,982.40
  4. Step 4: Simplify right side
    192,411.80x = 45,307,899,228.48
  5. Step 5: Solve for x
    x = 45,307,899,228.48/192,411.80
  6. Step 6: Final answer
    x = 235,473.60

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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.