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Finding the Fourth Proportional to 158,813.60, 238,169.82 and 52,172.80

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Solution

The fourth proportional to 158,813.60, 238,169.82 and 52,172.80 is: 78,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,813.60 : 238,169.82 = 52,172.80 : x
  2. Step 2: Convert to fraction form
    158,813.60/238,169.82 = 52,172.80/x
  3. Step 3: Cross multiply
    158,813.60x = 238,169.82 × 52,172.80
  4. Step 4: Simplify right side
    158,813.60x = 12,425,985,789.47
  5. Step 5: Solve for x
    x = 12,425,985,789.47/158,813.60
  6. Step 6: Final answer
    x = 78,242.58

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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.