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Finding the Fourth Proportional to 162,073.80, 242,964.90 and 105,940.80

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Solution

The fourth proportional to 162,073.80, 242,964.90 and 105,940.80 is: 158,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,073.80 : 242,964.90 = 105,940.80 : x
  2. Step 2: Convert to fraction form
    162,073.80/242,964.90 = 105,940.80/x
  3. Step 3: Cross multiply
    162,073.80x = 242,964.90 × 105,940.80
  4. Step 4: Simplify right side
    162,073.80x = 25,739,895,877.92
  5. Step 5: Solve for x
    x = 25,739,895,877.92/162,073.80
  6. Step 6: Final answer
    x = 158,815.90

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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.