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Finding the Fourth Proportional to 181,774.20, 272,661.30 and 103,042.20

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Solution

The fourth proportional to 181,774.20, 272,661.30 and 103,042.20 is: 154,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,774.20 : 272,661.30 = 103,042.20 : x
  2. Step 2: Convert to fraction form
    181,774.20/272,661.30 = 103,042.20/x
  3. Step 3: Cross multiply
    181,774.20x = 272,661.30 × 103,042.20
  4. Step 4: Simplify right side
    181,774.20x = 28,095,620,206.86
  5. Step 5: Solve for x
    x = 28,095,620,206.86/181,774.20
  6. Step 6: Final answer
    x = 154,563.30

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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.