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Finding the Fourth Proportional to 67,272.40, 100,908.60 and 62,898.40

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Solution

The fourth proportional to 67,272.40, 100,908.60 and 62,898.40 is: 94,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,272.40 : 100,908.60 = 62,898.40 : x
  2. Step 2: Convert to fraction form
    67,272.40/100,908.60 = 62,898.40/x
  3. Step 3: Cross multiply
    67,272.40x = 100,908.60 × 62,898.40
  4. Step 4: Simplify right side
    67,272.40x = 6,346,989,486.24
  5. Step 5: Solve for x
    x = 6,346,989,486.24/67,272.40
  6. Step 6: Final answer
    x = 94,347.60

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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.