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Finding the Fourth Proportional to 159,364.80, 239,047.20 and 48,542.40

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Solution

The fourth proportional to 159,364.80, 239,047.20 and 48,542.40 is: 72,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,364.80 : 239,047.20 = 48,542.40 : x
  2. Step 2: Convert to fraction form
    159,364.80/239,047.20 = 48,542.40/x
  3. Step 3: Cross multiply
    159,364.80x = 239,047.20 × 48,542.40
  4. Step 4: Simplify right side
    159,364.80x = 11,603,924,801.28
  5. Step 5: Solve for x
    x = 11,603,924,801.28/159,364.80
  6. Step 6: Final answer
    x = 72,813.60

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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.