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Finding the Fourth Proportional to 161,907.40, 242,682.90 and 56,672.20

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Solution

The fourth proportional to 161,907.40, 242,682.90 and 56,672.20 is: 84,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,907.40 : 242,682.90 = 56,672.20 : x
  2. Step 2: Convert to fraction form
    161,907.40/242,682.90 = 56,672.20/x
  3. Step 3: Cross multiply
    161,907.40x = 242,682.90 × 56,672.20
  4. Step 4: Simplify right side
    161,907.40x = 13,753,373,845.38
  5. Step 5: Solve for x
    x = 13,753,373,845.38/161,907.40
  6. Step 6: Final answer
    x = 84,945.92

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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.