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Finding the Fourth Proportional to 317,591.10, 438,262.40 and 174,354.46

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Solution

The fourth proportional to 317,591.10, 438,262.40 and 174,354.46 is: 240,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,591.10 : 438,262.40 = 174,354.46 : x
  2. Step 2: Convert to fraction form
    317,591.10/438,262.40 = 174,354.46/x
  3. Step 3: Cross multiply
    317,591.10x = 438,262.40 × 174,354.46
  4. Step 4: Simplify right side
    317,591.10x = 76,413,003,430.53
  5. Step 5: Solve for x
    x = 76,413,003,430.53/317,591.10
  6. Step 6: Final answer
    x = 240,601.84

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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.