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Finding the Fourth Proportional to 102,967.40, 154,451.10 and 63,396.20

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Solution

The fourth proportional to 102,967.40, 154,451.10 and 63,396.20 is: 95,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,967.40 : 154,451.10 = 63,396.20 : x
  2. Step 2: Convert to fraction form
    102,967.40/154,451.10 = 63,396.20/x
  3. Step 3: Cross multiply
    102,967.40x = 154,451.10 × 63,396.20
  4. Step 4: Simplify right side
    102,967.40x = 9,791,612,825.82
  5. Step 5: Solve for x
    x = 9,791,612,825.82/102,967.40
  6. Step 6: Final answer
    x = 95,094.30

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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.