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Finding the Fourth Proportional to 161,851.20, 242,776.80 and 160,814.40

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Solution

The fourth proportional to 161,851.20, 242,776.80 and 160,814.40 is: 241,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,851.20 : 242,776.80 = 160,814.40 : x
  2. Step 2: Convert to fraction form
    161,851.20/242,776.80 = 160,814.40/x
  3. Step 3: Cross multiply
    161,851.20x = 242,776.80 × 160,814.40
  4. Step 4: Simplify right side
    161,851.20x = 39,042,005,425.92
  5. Step 5: Solve for x
    x = 39,042,005,425.92/161,851.20
  6. Step 6: Final answer
    x = 241,221.60

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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.