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Finding the Fourth Proportional to 317,804.34, 438,572.62 and 174,567.64

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Solution

The fourth proportional to 317,804.34, 438,572.62 and 174,567.64 is: 240,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,804.34 : 438,572.62 = 174,567.64 : x
  2. Step 2: Convert to fraction form
    317,804.34/438,572.62 = 174,567.64/x
  3. Step 3: Cross multiply
    317,804.34x = 438,572.62 × 174,567.64
  4. Step 4: Simplify right side
    317,804.34x = 76,560,587,242.02
  5. Step 5: Solve for x
    x = 76,560,587,242.02/317,804.34
  6. Step 6: Final answer
    x = 240,904.79

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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.