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Finding the Fourth Proportional to 317,909.16, 438,708.42 and 174,665.52

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Solution

The fourth proportional to 317,909.16, 438,708.42 and 174,665.52 is: 241,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,909.16 : 438,708.42 = 174,665.52 : x
  2. Step 2: Convert to fraction form
    317,909.16/438,708.42 = 174,665.52/x
  3. Step 3: Cross multiply
    317,909.16x = 438,708.42 × 174,665.52
  4. Step 4: Simplify right side
    317,909.16x = 76,627,234,307.68
  5. Step 5: Solve for x
    x = 76,627,234,307.68/317,909.16
  6. Step 6: Final answer
    x = 241,035.00

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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.