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Finding the Fourth Proportional to 229,729.80, 344,594.70 and 72,006.60

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Solution

The fourth proportional to 229,729.80, 344,594.70 and 72,006.60 is: 108,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,729.80 : 344,594.70 = 72,006.60 : x
  2. Step 2: Convert to fraction form
    229,729.80/344,594.70 = 72,006.60/x
  3. Step 3: Cross multiply
    229,729.80x = 344,594.70 × 72,006.60
  4. Step 4: Simplify right side
    229,729.80x = 24,813,092,725.02
  5. Step 5: Solve for x
    x = 24,813,092,725.02/229,729.80
  6. Step 6: Final answer
    x = 108,009.90

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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.