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Finding the Fourth Proportional to 564,128.80, 846,169.20 and 190,151.20

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Solution

The fourth proportional to 564,128.80, 846,169.20 and 190,151.20 is: 285,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,128.80 : 846,169.20 = 190,151.20 : x
  2. Step 2: Convert to fraction form
    564,128.80/846,169.20 = 190,151.20/x
  3. Step 3: Cross multiply
    564,128.80x = 846,169.20 × 190,151.20
  4. Step 4: Simplify right side
    564,128.80x = 160,900,088,783.04
  5. Step 5: Solve for x
    x = 160,900,088,783.04/564,128.80
  6. Step 6: Final answer
    x = 285,218.71

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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.