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Finding the Fourth Proportional to 160,561.20, 240,841.80 and 113,905.20

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Solution

The fourth proportional to 160,561.20, 240,841.80 and 113,905.20 is: 170,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,561.20 : 240,841.80 = 113,905.20 : x
  2. Step 2: Convert to fraction form
    160,561.20/240,841.80 = 113,905.20/x
  3. Step 3: Cross multiply
    160,561.20x = 240,841.80 × 113,905.20
  4. Step 4: Simplify right side
    160,561.20x = 27,433,133,397.36
  5. Step 5: Solve for x
    x = 27,433,133,397.36/160,561.20
  6. Step 6: Final answer
    x = 170,857.80

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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.