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Finding the Fourth Proportional to 243,425.20, 365,137.80 and 65,954.20

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Solution

The fourth proportional to 243,425.20, 365,137.80 and 65,954.20 is: 98,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,425.20 : 365,137.80 = 65,954.20 : x
  2. Step 2: Convert to fraction form
    243,425.20/365,137.80 = 65,954.20/x
  3. Step 3: Cross multiply
    243,425.20x = 365,137.80 × 65,954.20
  4. Step 4: Simplify right side
    243,425.20x = 24,082,371,488.76
  5. Step 5: Solve for x
    x = 24,082,371,488.76/243,425.20
  6. Step 6: Final answer
    x = 98,931.30

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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.