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Finding the Fourth Proportional to 317,882.36, 438,675.82 and 174,639.32

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Solution

The fourth proportional to 317,882.36, 438,675.82 and 174,639.32 is: 241,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,882.36 : 438,675.82 = 174,639.32 : x
  2. Step 2: Convert to fraction form
    317,882.36/438,675.82 = 174,639.32/x
  3. Step 3: Cross multiply
    317,882.36x = 438,675.82 × 174,639.32
  4. Step 4: Simplify right side
    317,882.36x = 76,610,046,905.24
  5. Step 5: Solve for x
    x = 76,610,046,905.24/317,882.36
  6. Step 6: Final answer
    x = 241,001.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.