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Finding the Fourth Proportional to 242,798.65, 335,063.60 and 140,884.80

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Solution

The fourth proportional to 242,798.65, 335,063.60 and 140,884.80 is: 194,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,798.65 : 335,063.60 = 140,884.80 : x
  2. Step 2: Convert to fraction form
    242,798.65/335,063.60 = 140,884.80/x
  3. Step 3: Cross multiply
    242,798.65x = 335,063.60 × 140,884.80
  4. Step 4: Simplify right side
    242,798.65x = 47,205,368,273.28
  5. Step 5: Solve for x
    x = 47,205,368,273.28/242,798.65
  6. Step 6: Final answer
    x = 194,421.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.