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Finding the Fourth Proportional to 110,950.20, 153,079.20 and 68,522.40

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Solution

The fourth proportional to 110,950.20, 153,079.20 and 68,522.40 is: 94,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,950.20 : 153,079.20 = 68,522.40 : x
  2. Step 2: Convert to fraction form
    110,950.20/153,079.20 = 68,522.40/x
  3. Step 3: Cross multiply
    110,950.20x = 153,079.20 × 68,522.40
  4. Step 4: Simplify right side
    110,950.20x = 10,489,354,174.08
  5. Step 5: Solve for x
    x = 10,489,354,174.08/110,950.20
  6. Step 6: Final answer
    x = 94,541.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.