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Finding the Fourth Proportional to 317,076.60, 437,569.30 and 181,128.54

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Solution

The fourth proportional to 317,076.60, 437,569.30 and 181,128.54 is: 249,959.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,076.60 : 437,569.30 = 181,128.54 : x
  2. Step 2: Convert to fraction form
    317,076.60/437,569.30 = 181,128.54/x
  3. Step 3: Cross multiply
    317,076.60x = 437,569.30 × 181,128.54
  4. Step 4: Simplify right side
    317,076.60x = 79,256,288,457.82
  5. Step 5: Solve for x
    x = 79,256,288,457.82/317,076.60
  6. Step 6: Final answer
    x = 249,959.44

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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.