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Finding the Fourth Proportional to 117,753.21, 176,522.90 and 42,820.38

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Solution

The fourth proportional to 117,753.21, 176,522.90 and 42,820.38 is: 64,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,753.21 : 176,522.90 = 42,820.38 : x
  2. Step 2: Convert to fraction form
    117,753.21/176,522.90 = 42,820.38/x
  3. Step 3: Cross multiply
    117,753.21x = 176,522.90 × 42,820.38
  4. Step 4: Simplify right side
    117,753.21x = 7,558,777,442.60
  5. Step 5: Solve for x
    x = 7,558,777,442.60/117,753.21
  6. Step 6: Final answer
    x = 64,191.69

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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.