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Finding the Fourth Proportional to 136,951.80, 205,038.90 and 136,951.80

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Solution

The fourth proportional to 136,951.80, 205,038.90 and 136,951.80 is: 205,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,951.80 : 205,038.90 = 136,951.80 : x
  2. Step 2: Convert to fraction form
    136,951.80/205,038.90 = 136,951.80/x
  3. Step 3: Cross multiply
    136,951.80x = 205,038.90 × 136,951.80
  4. Step 4: Simplify right side
    136,951.80x = 28,080,446,425.02
  5. Step 5: Solve for x
    x = 28,080,446,425.02/136,951.80
  6. Step 6: Final answer
    x = 205,038.90

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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.