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Finding the Fourth Proportional to 109,079.40, 163,619.10 and 62,423.40

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Solution

The fourth proportional to 109,079.40, 163,619.10 and 62,423.40 is: 93,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,079.40 : 163,619.10 = 62,423.40 : x
  2. Step 2: Convert to fraction form
    109,079.40/163,619.10 = 62,423.40/x
  3. Step 3: Cross multiply
    109,079.40x = 163,619.10 × 62,423.40
  4. Step 4: Simplify right side
    109,079.40x = 10,213,660,526.94
  5. Step 5: Solve for x
    x = 10,213,660,526.94/109,079.40
  6. Step 6: Final answer
    x = 93,635.10

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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.