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Finding the Fourth Proportional to 113,813.10, 170,719.65 and 43,694.10

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Solution

The fourth proportional to 113,813.10, 170,719.65 and 43,694.10 is: 65,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,813.10 : 170,719.65 = 43,694.10 : x
  2. Step 2: Convert to fraction form
    113,813.10/170,719.65 = 43,694.10/x
  3. Step 3: Cross multiply
    113,813.10x = 170,719.65 × 43,694.10
  4. Step 4: Simplify right side
    113,813.10x = 7,459,441,459.07
  5. Step 5: Solve for x
    x = 7,459,441,459.07/113,813.10
  6. Step 6: Final answer
    x = 65,541.15

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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.