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Finding the Fourth Proportional to 317,888.46, 438,696.54 and 174,658.86

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Solution

The fourth proportional to 317,888.46, 438,696.54 and 174,658.86 is: 241,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,888.46 : 438,696.54 = 174,658.86 : x
  2. Step 2: Convert to fraction form
    317,888.46/438,696.54 = 174,658.86/x
  3. Step 3: Cross multiply
    317,888.46x = 438,696.54 × 174,658.86
  4. Step 4: Simplify right side
    317,888.46x = 76,622,237,562.34
  5. Step 5: Solve for x
    x = 76,622,237,562.34/317,888.46
  6. Step 6: Final answer
    x = 241,034.98

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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.