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Finding the Fourth Proportional to 113,493.40, 170,240.10 and 43,363.60

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Solution

The fourth proportional to 113,493.40, 170,240.10 and 43,363.60 is: 65,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,493.40 : 170,240.10 = 43,363.60 : x
  2. Step 2: Convert to fraction form
    113,493.40/170,240.10 = 43,363.60/x
  3. Step 3: Cross multiply
    113,493.40x = 170,240.10 × 43,363.60
  4. Step 4: Simplify right side
    113,493.40x = 7,382,223,600.36
  5. Step 5: Solve for x
    x = 7,382,223,600.36/113,493.40
  6. Step 6: Final answer
    x = 65,045.40

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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.