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Finding the Fourth Proportional to 113,547.62, 170,321.43 and 43,448.42

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Solution

The fourth proportional to 113,547.62, 170,321.43 and 43,448.42 is: 65,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,547.62 : 170,321.43 = 43,448.42 : x
  2. Step 2: Convert to fraction form
    113,547.62/170,321.43 = 43,448.42/x
  3. Step 3: Cross multiply
    113,547.62x = 170,321.43 × 43,448.42
  4. Step 4: Simplify right side
    113,547.62x = 7,400,197,025.64
  5. Step 5: Solve for x
    x = 7,400,197,025.64/113,547.62
  6. Step 6: Final answer
    x = 65,172.63

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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.