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Finding the Fourth Proportional to 137,267.60, 205,901.40 and 48,520.40

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Solution

The fourth proportional to 137,267.60, 205,901.40 and 48,520.40 is: 72,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,267.60 : 205,901.40 = 48,520.40 : x
  2. Step 2: Convert to fraction form
    137,267.60/205,901.40 = 48,520.40/x
  3. Step 3: Cross multiply
    137,267.60x = 205,901.40 × 48,520.40
  4. Step 4: Simplify right side
    137,267.60x = 9,990,418,288.56
  5. Step 5: Solve for x
    x = 9,990,418,288.56/137,267.60
  6. Step 6: Final answer
    x = 72,780.60

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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.