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Finding the Fourth Proportional to 165,482.40, 247,930.80 and 160,000.80

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Solution

The fourth proportional to 165,482.40, 247,930.80 and 160,000.80 is: 239,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,482.40 : 247,930.80 = 160,000.80 : x
  2. Step 2: Convert to fraction form
    165,482.40/247,930.80 = 160,000.80/x
  3. Step 3: Cross multiply
    165,482.40x = 247,930.80 × 160,000.80
  4. Step 4: Simplify right side
    165,482.40x = 39,669,126,344.64
  5. Step 5: Solve for x
    x = 39,669,126,344.64/165,482.40
  6. Step 6: Final answer
    x = 239,718.10

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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.